Error: Uncaught (in promise): SyntaxError: JSON.parse: unexpected character at line 1 column 2 of the JSON data

I am getting the following error:-

this is my console:-

ERROR Error: Uncaught (in promise): SyntaxError: JSON.parse: unexpected character at line 1 column 2 of the JSON data
HomePage.prototype.loadCheckbook/<@http://localhost:8102/build/main.js:64164:30
f</t.prototype.invoke@http://localhost:8102/build/polyfills.js:3:8969
onInvoke@http://localhost:8102/build/main.js:4480:28
f</t.prototype.invoke@http://localhost:8102/build/polyfills.js:3:8896
c</r.prototype.run@http://localhost:8102/build/polyfills.js:3:4121
f/<@http://localhost:8102/build/polyfills.js:3:13729
f</t.prototype.invokeTask@http://localhost:8102/build/polyfills.js:3:9644
onInvokeTask@http://localhost:8102/build/main.js:4471:28
f</t.prototype.invokeTask@http://localhost:8102/build/polyfills.js:3:9557
c</r.prototype.runTask@http://localhost:8102/build/polyfills.js:3:4812
o@http://localhost:8102/build/polyfills.js:3:1884
t/this.invoke@http://localhost:8102/build/polyfills.js:3:10673

Stack trace:
c@http://localhost:8102/build/polyfills.js:3:13190
f/<@http://localhost:8102/build/polyfills.js:3:13762
f</t.prototype.invokeTask@http://localhost:8102/build/polyfills.js:3:9644
onInvokeTask@http://localhost:8102/build/main.js:4471:28
f</t.prototype.invokeTask@http://localhost:8102/build/polyfills.js:3:9557
c</r.prototype.runTask@http://localhost:8102/build/polyfills.js:3:4812
o@http://localhost:8102/build/polyfills.js:3:1884
t/this.invoke@http://localhost:8102/build/polyfills.js:3:10673
  main.js:1436:5
Current account => Untitled  main.js:64057:13
ERROR Error: Uncaught (in promise): SyntaxError: JSON.parse: unexpected character at line 1 column 2 of the JSON data
HomePage.prototype.loadCheckbook/<@http://localhost:8102/build/main.js:64164:30
f</t.prototype.invoke@http://localhost:8102/build/polyfills.js:3:8969
onInvoke@http://localhost:8102/build/main.js:4480:28
f</t.prototype.invoke@http://localhost:8102/build/polyfills.js:3:8896
c</r.prototype.run@http://localhost:8102/build/polyfills.js:3:4121
f/<@http://localhost:8102/build/polyfills.js:3:13729
f</t.prototype.invokeTask@http://localhost:8102/build/polyfills.js:3:9644
onInvokeTask@http://localhost:8102/build/main.js:4471:28
f</t.prototype.invokeTask@http://localhost:8102/build/polyfills.js:3:9557
c</r.prototype.runTask@http://localhost:8102/build/polyfills.js:3:4812
o@http://localhost:8102/build/polyfills.js:3:1884
t/this.invoke@http://localhost:8102/build/polyfills.js:3:10673

Stack trace:
c@http://localhost:8102/build/polyfills.js:3:13190
f/<@http://localhost:8102/build/polyfills.js:3:13762
f</t.prototype.invokeTask@http://localhost:8102/build/polyfills.js:3:9644
onInvokeTask@http://localhost:8102/build/main.js:4471:28
f</t.prototype.invokeTask@http://localhost:8102/build/polyfills.js:3:9557
c</r.prototype.runTask@http://localhost:8102/build/polyfills.js:3:4812
o@http://localhost:8102/build/polyfills.js:3:1884
t/this.invoke@http://localhost:8102/build/polyfills.js:3:10673
  main.js:1436:5
Updating..  main.js:64165:13
Current account => Untitled  main.js:64057:13
ERROR Error: Uncaught (in promise): SyntaxError: JSON.parse: unexpected character at line 1 column 2 of the JSON data
HomePage.prototype.loadCheckbook/<@http://localhost:8102/build/main.js:64164:30
f</t.prototype.invoke@http://localhost:8102/build/polyfills.js:3:8969
onInvoke@http://localhost:8102/build/main.js:4480:28
f</t.prototype.invoke@http://localhost:8102/build/polyfills.js:3:8896
c</r.prototype.run@http://localhost:8102/build/polyfills.js:3:4121
f/<@http://localhost:8102/build/polyfills.js:3:13729
f</t.prototype.invokeTask@http://localhost:8102/build/polyfills.js:3:9644
onInvokeTask@http://localhost:8102/build/main.js:4471:28
f</t.prototype.invokeTask@http://localhost:8102/build/polyfills.js:3:9557
c</r.prototype.runTask@http://localhost:8102/build/polyfills.js:3:4812
o@http://localhost:8102/build/polyfills.js:3:1884
t/this.invoke@http://localhost:8102/build/polyfills.js:3:10673

Stack trace:
c@http://localhost:8102/build/polyfills.js:3:13190
f/<@http://localhost:8102/build/polyfills.js:3:13762
f</t.prototype.invokeTask@http://localhost:8102/build/polyfills.js:3:9644
onInvokeTask@http://localhost:8102/build/main.js:4471:28
f</t.prototype.invokeTask@http://localhost:8102/build/polyfills.js:3:9557
c</r.prototype.runTask@http://localhost:8102/build/polyfills.js:3:4812
o@http://localhost:8102/build/polyfills.js:3:1884
t/this.invoke@http://localhost:8102/build/polyfills.js:3:10673
  main.js:1436:5
ERROR Error: Uncaught (in promise): SyntaxError: JSON.parse: unexpected character at line 1 column 2 of the JSON data
HomePage.prototype.loadCheckbook/<@http://localhost:8102/build/main.js:64164:30
f</t.prototype.invoke@http://localhost:8102/build/polyfills.js:3:8969
onInvoke@http://localhost:8102/build/main.js:4480:28
f</t.prototype.invoke@http://localhost:8102/build/polyfills.js:3:8896
c</r.prototype.run@http://localhost:8102/build/polyfills.js:3:4121
f/<@http://localhost:8102/build/polyfills.js:3:13729
f</t.prototype.invokeTask@http://localhost:8102/build/polyfills.js:3:9644
onInvokeTask@http://localhost:8102/build/main.js:4471:28
f</t.prototype.invokeTask@http://localhost:8102/build/polyfills.js:3:9557
c</r.prototype.runTask@http://localhost:8102/build/polyfills.js:3:4812
o@http://localhost:8102/build/polyfills.js:3:1884
t/this.invoke@http://localhost:8102/build/polyfills.js:3:10673

Stack trace:
c@http://localhost:8102/build/polyfills.js:3:13190
f/<@http://localhost:8102/build/polyfills.js:3:13762
f</t.prototype.invokeTask@http://localhost:8102/build/polyfills.js:3:9644
onInvokeTask@http://localhost:8102/build/main.js:4471:28
f</t.prototype.invokeTask@http://localhost:8102/build/polyfills.js:3:9557
c</r.prototype.runTask@http://localhost:8102/build/polyfills.js:3:4812
o@http://localhost:8102/build/polyfills.js:3:1884
t/this.invoke@http://localhost:8102/build/polyfills.js:3:10673
  main.js:1436:5
Updating..