fixes #47551

src/vs/workbench/parts/debug/common/debugModel.ts

@@ -901,7 +901,7 @@ export class Model implements IModel {
 				const ebp = this.exceptionBreakpoints.filter(ebp => ebp.filter === d.filter).pop();
 				return new ExceptionBreakpoint(d.filter, d.label, ebp ? ebp.enabled : d.default);
 			});
-			this._onDidChangeBreakpoints.fire({});
+			this._onDidChangeBreakpoints.fire();
 		}
 	}
 
@@ -911,7 +911,7 @@ export class Model implements IModel {
 
 	public setBreakpointsActivated(activated: boolean): void {
 		this.breakpointsActivated = activated;
-		this._onDidChangeBreakpoints.fire({});
+		this._onDidChangeBreakpoints.fire();
 	}
 
 	public addBreakpoints(uri: uri, rawData: IBreakpointData[], fireEvent = true): IBreakpoint[] {

src/vs/workbench/parts/debug/electron-browser/breakpointWidget.ts

@@ -80,7 +80,7 @@ export class BreakpointWidget extends ZoneWidget implements IPrivateBreakopintWi
 		}
 
 		this.toDispose.push(this.debugService.getModel().onDidChangeBreakpoints(e => {
-			if (this.breakpoint && e.removed && e.removed.indexOf(this.breakpoint) >= 0) {
+			if (this.breakpoint && e && e.removed && e.removed.indexOf(this.breakpoint) >= 0) {
 				this.dispose();
 			}
 		}));