diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0f96f7878..2ff7f6342 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,6 +11,12 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 - Supported enter key press to submit the form of the create or edit transaction dialog
 
+### Fixed
+
+- Fixed the date format of the date picker and support manual changes
+- Fixed the state of the account delete button (disable if account contains activities)
+- Fixed an issue in the activities filter component (typing a search term)
+
 ## 1.147.0 - 10.05.2022
 
 ### Changed
diff --git a/apps/client/src/app/adapter/custom-date-adapter.ts b/apps/client/src/app/adapter/custom-date-adapter.ts
index 5c5be28f9..74bf7dd7a 100644
--- a/apps/client/src/app/adapter/custom-date-adapter.ts
+++ b/apps/client/src/app/adapter/custom-date-adapter.ts
@@ -1,14 +1,15 @@
 import { Platform } from '@angular/cdk/platform';
 import { Inject, forwardRef } from '@angular/core';
 import { MAT_DATE_LOCALE, NativeDateAdapter } from '@angular/material/core';
-import { format, isValid } from 'date-fns';
-import * as deDateFnsLocale from 'date-fns/locale/de/index';
+import { getDateFormatString } from '@ghostfolio/common/helper';
+import { format, parse } from 'date-fns';
 
 export class CustomDateAdapter extends NativeDateAdapter {
   /**
    * @constructor
    */
   public constructor(
+    @Inject(MAT_DATE_LOCALE) public locale: string,
     @Inject(forwardRef(() => MAT_DATE_LOCALE)) matDateLocale: string,
     platform: Platform
   ) {
@@ -16,50 +17,23 @@ export class CustomDateAdapter extends NativeDateAdapter {
   }
 
   /**
-   * Sets the first day of the week to Monday
+   * Formats a date as a string
    */
-  public getFirstDayOfWeek(): number {
-    return 1;
+  public format(aDate: Date, aParseFormat: string): string {
+    return format(aDate, getDateFormatString(this.locale));
   }
 
   /**
-   * Formats a date as a string according to the given format
+   * Sets the first day of the week to Monday
    */
-  public format(aDate: Date, aParseFormat: string): string {
-    return format(aDate, aParseFormat, {
-      locale: <any>deDateFnsLocale
-    });
+  public getFirstDayOfWeek(): number {
+    return 1;
   }
 
   /**
    * Parses a date from a provided value
    */
-  public parse(aValue: any): Date {
-    let date: Date;
-
-    try {
-      // TODO
-      // Native date parser from the following formats:
-      // - 'd.M.yyyy'
-      // - 'dd.MM.yyyy'
-      // https://github.com/you-dont-need/You-Dont-Need-Momentjs#string--date-format
-      const datePattern = /^(\d{1,2}).(\d{1,2}).(\d{4})$/;
-      const [, day, month, year] = datePattern.exec(aValue);
-
-      date = new Date(
-        parseInt(year, 10),
-        parseInt(month, 10) - 1, // monthIndex
-        parseInt(day, 10)
-      );
-    } catch (error) {
-    } finally {
-      const isDateValid = date && isValid(date);
-
-      if (isDateValid) {
-        return date;
-      }
-
-      return null;
-    }
+  public parse(aValue: string): Date {
+    return parse(aValue, getDateFormatString(this.locale), new Date());
   }
 }
diff --git a/apps/client/src/app/components/accounts-table/accounts-table.component.html b/apps/client/src/app/components/accounts-table/accounts-table.component.html
index cf8446e42..08c6c3de9 100644
--- a/apps/client/src/app/components/accounts-table/accounts-table.component.html
+++ b/apps/client/src/app/components/accounts-table/accounts-table.component.html
@@ -200,7 +200,7 @@
         </button>
         <button
           mat-menu-item
-          [disabled]="element.isDefault || element.Order?.length > 0"
+          [disabled]="element.isDefault || element.transactionCount > 0"
           (click)="onDeleteAccount(element.id)"
         >
           <ion-icon class="mr-2" name="trash-outline"></ion-icon>
diff --git a/apps/client/src/app/components/admin-market-data-detail/admin-market-data-detail.component.ts b/apps/client/src/app/components/admin-market-data-detail/admin-market-data-detail.component.ts
index f28253b90..b4a715a95 100644
--- a/apps/client/src/app/components/admin-market-data-detail/admin-market-data-detail.component.ts
+++ b/apps/client/src/app/components/admin-market-data-detail/admin-market-data-detail.component.ts
@@ -8,11 +8,13 @@ import {
   Output
 } from '@angular/core';
 import { MatDialog } from '@angular/material/dialog';
+import { UserService } from '@ghostfolio/client/services/user/user.service';
 import {
   DATE_FORMAT,
   getDateFormatString,
   getLocale
 } from '@ghostfolio/common/helper';
+import { User } from '@ghostfolio/common/interfaces';
 import { LineChartItem } from '@ghostfolio/ui/line-chart/interfaces/line-chart.interface';
 import { DataSource, MarketData } from '@prisma/client';
 import {
@@ -53,14 +55,24 @@ export class AdminMarketDataDetailComponent implements OnChanges, OnInit {
       [day: string]: Pick<MarketData, 'date' | 'marketPrice'> & { day: number };
     };
   } = {};
+  public user: User;
 
   private unsubscribeSubject = new Subject<void>();
 
   public constructor(
     private deviceService: DeviceDetectorService,
-    private dialog: MatDialog
+    private dialog: MatDialog,
+    private userService: UserService
   ) {
     this.deviceType = this.deviceService.getDeviceInfo().deviceType;
+
+    this.userService.stateChanged
+      .pipe(takeUntil(this.unsubscribeSubject))
+      .subscribe((state) => {
+        if (state?.user) {
+          this.user = state.user;
+        }
+      });
   }
 
   public ngOnInit() {}
@@ -145,7 +157,8 @@ export class AdminMarketDataDetailComponent implements OnChanges, OnInit {
         date,
         marketPrice,
         dataSource: this.dataSource,
-        symbol: this.symbol
+        symbol: this.symbol,
+        user: this.user
       },
       height: this.deviceType === 'mobile' ? '97.5vh' : '80vh',
       width: this.deviceType === 'mobile' ? '100vw' : '50rem'
diff --git a/apps/client/src/app/components/admin-market-data-detail/market-data-detail-dialog/interfaces/interfaces.ts b/apps/client/src/app/components/admin-market-data-detail/market-data-detail-dialog/interfaces/interfaces.ts
index a6f543789..81360878b 100644
--- a/apps/client/src/app/components/admin-market-data-detail/market-data-detail-dialog/interfaces/interfaces.ts
+++ b/apps/client/src/app/components/admin-market-data-detail/market-data-detail-dialog/interfaces/interfaces.ts
@@ -1,3 +1,4 @@
+import { User } from '@ghostfolio/common/interfaces';
 import { DataSource } from '@prisma/client';
 
 export interface MarketDataDetailDialogParams {
@@ -5,4 +6,5 @@ export interface MarketDataDetailDialogParams {
   date: Date;
   marketPrice: number;
   symbol: string;
+  user: User;
 }
diff --git a/apps/client/src/app/components/admin-market-data-detail/market-data-detail-dialog/market-data-detail-dialog.component.ts b/apps/client/src/app/components/admin-market-data-detail/market-data-detail-dialog/market-data-detail-dialog.component.ts
index 01b1f4718..8c761ccdb 100644
--- a/apps/client/src/app/components/admin-market-data-detail/market-data-detail-dialog/market-data-detail-dialog.component.ts
+++ b/apps/client/src/app/components/admin-market-data-detail/market-data-detail-dialog/market-data-detail-dialog.component.ts
@@ -5,6 +5,7 @@ import {
   Inject,
   OnDestroy
 } from '@angular/core';
+import { DateAdapter, MAT_DATE_LOCALE } from '@angular/material/core';
 import { MAT_DIALOG_DATA, MatDialogRef } from '@angular/material/dialog';
 import { AdminService } from '@ghostfolio/client/services/admin.service';
 import { Subject, takeUntil } from 'rxjs';
@@ -24,11 +25,16 @@ export class MarketDataDetailDialog implements OnDestroy {
   public constructor(
     private adminService: AdminService,
     private changeDetectorRef: ChangeDetectorRef,
+    @Inject(MAT_DIALOG_DATA) public data: MarketDataDetailDialogParams,
+    private dateAdapter: DateAdapter<any>,
     public dialogRef: MatDialogRef<MarketDataDetailDialog>,
-    @Inject(MAT_DIALOG_DATA) public data: MarketDataDetailDialogParams
+    @Inject(MAT_DATE_LOCALE) private locale: string
   ) {}
 
-  public ngOnInit() {}
+  public ngOnInit() {
+    this.locale = this.data.user?.settings?.locale;
+    this.dateAdapter.setLocale(this.locale);
+  }
 
   public onCancel(): void {
     this.dialogRef.close({ withRefresh: false });
diff --git a/apps/client/src/app/pages/portfolio/transactions/create-or-update-transaction-dialog/create-or-update-transaction-dialog.component.ts b/apps/client/src/app/pages/portfolio/transactions/create-or-update-transaction-dialog/create-or-update-transaction-dialog.component.ts
index b4794a043..52fc2f367 100644
--- a/apps/client/src/app/pages/portfolio/transactions/create-or-update-transaction-dialog/create-or-update-transaction-dialog.component.ts
+++ b/apps/client/src/app/pages/portfolio/transactions/create-or-update-transaction-dialog/create-or-update-transaction-dialog.component.ts
@@ -8,6 +8,7 @@ import {
 } from '@angular/core';
 import { FormBuilder, FormGroup, Validators } from '@angular/forms';
 import { MatAutocompleteSelectedEvent } from '@angular/material/autocomplete';
+import { DateAdapter, MAT_DATE_LOCALE } from '@angular/material/core';
 import { MAT_DIALOG_DATA, MatDialogRef } from '@angular/material/dialog';
 import { CreateOrderDto } from '@ghostfolio/api/app/order/create-order.dto';
 import { UpdateOrderDto } from '@ghostfolio/api/app/order/update-order.dto';
@@ -54,13 +55,18 @@ export class CreateOrUpdateTransactionDialog implements OnDestroy {
 
   public constructor(
     private changeDetectorRef: ChangeDetectorRef,
+    @Inject(MAT_DIALOG_DATA) public data: CreateOrUpdateTransactionDialogParams,
     private dataService: DataService,
+    private dateAdapter: DateAdapter<any>,
     public dialogRef: MatDialogRef<CreateOrUpdateTransactionDialog>,
     private formBuilder: FormBuilder,
-    @Inject(MAT_DIALOG_DATA) public data: CreateOrUpdateTransactionDialogParams
+    @Inject(MAT_DATE_LOCALE) private locale: string
   ) {}
 
   public ngOnInit() {
+    this.locale = this.data.user?.settings?.locale;
+    this.dateAdapter.setLocale(this.locale);
+
     const { currencies, platforms } = this.dataService.fetchInfo();
 
     this.currencies = currencies;
diff --git a/libs/ui/src/lib/activities-filter/activities-filter.component.ts b/libs/ui/src/lib/activities-filter/activities-filter.component.ts
index bf8c5878b..f466999bb 100644
--- a/libs/ui/src/lib/activities-filter/activities-filter.component.ts
+++ b/libs/ui/src/lib/activities-filter/activities-filter.component.ts
@@ -48,8 +48,8 @@ export class ActivitiesFilterComponent implements OnChanges, OnDestroy {
   public constructor() {
     this.searchControl.valueChanges
       .pipe(takeUntil(this.unsubscribeSubject))
-      .subscribe((currentFilter: Filter) => {
-        if (currentFilter) {
+      .subscribe((filterOrSearchTerm: Filter | string) => {
+        if (filterOrSearchTerm) {
           this.filters$.next(
             this.allFilters
               .filter((filter) => {
@@ -59,9 +59,15 @@ export class ActivitiesFilterComponent implements OnChanges, OnDestroy {
                 });
               })
               .filter((filter) => {
+                if (typeof filterOrSearchTerm === 'string') {
+                  return filter.label
+                    .toLowerCase()
+                    .startsWith(filterOrSearchTerm.toLowerCase());
+                }
+
                 return filter.label
                   .toLowerCase()
-                  .startsWith(currentFilter.label.toLowerCase());
+                  .startsWith(filterOrSearchTerm?.label?.toLowerCase());
               })
               .sort((a, b) => a.label.localeCompare(b.label))
           );