Error: COULD NOT COMPLETE THE OPERATION DUE TO ERROR 80020101

Root Cause: Because of  JavaScript code.

Solution:
You have to check your JavaScript code...Common places where developer will do mistakes.

Use proper JavaScript Formatting

Don't use
<script type="text/javascript">
<!--
/* Code here */
-->
</script>

Use below
<script type="text/javascript">
/* Code here */
</script>

JavaScript comments
DOn't use : // Comment
Use : /* New Comment */

DOn't add trailing commas :
Ex: var x = [item1,item2,item3,];
Use: var x = [item1,item2,item3];