TableExceptionC in Slip Templates and SQL error code = -303

Seem to get his error a lot when working within Slip Templates, trying to delete them etc. 

When we try to convert the database with these slip templates:

Converting Slip Template table
Slip Template Records 3..4271

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ERROR


Class: EIBNativeException
[FireDAC][Phys][IB]Dynamic SQL Error
SQL error code = -303
arithmetic exception, numeric overflow, or string truncation
string right truncation

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Completed: 3/24/2019 10:13:19 PM
Database failed to convert.

So does that mean at slip template 4271? there seems to be an error out of the 6200 that need to be converted? That's what it looks like to me. 

Now to find slip 4271