Can not insert duplicate key with indix '#...

Hi guys, I get this error. How do I find the index or table that is causing the issues.

Thanks!

The database reported the following error:
Source: Microsoft OLE DB Provider for SQL Server
Error code: 0x80040e2f
SQL error code: 2601
Description: Cannot insert duplicate key row in object '#d_______________________________________________ __________________________________________________ _________________0000000001B6' with unique index '#dvidx'.
Command 1 was:

I have been looking at indexes and tables and cant seem to find anything with that id or name.

It's temp table in tempdb.