Having error UNANTICIPATED-ERROR on Quest Code Tester (4334710)

Having error  

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Oracle Error General
Error code : 10000002
Error name : UNANTICIPATED-ERROR
Error details :
Replacement operation resulted in string too large for buffer (> 32K)

An unanticipated error has occurred. Please review the information below and see if it will help you resolve the problem.

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Oracle Error Advanced
System error code : -6502
System error message :
ORA-06502: PL/SQL: numeric or value error: character string buffer too small

Error stack :
ORA-06512: at "QCT.QU_REPLACE", line 152
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when running a test.