Curious, can you please post a sanitized tnsnames.ora?

Update: https://www.dbasolved.com/2012/12/ora-25401-cannot-continue-fetches/. Does cranking up tracing turn up anything useful?

In reply to Re: DBD::Oracle::st fetchrow_hashref failed: ORA-25401 by marto
in thread RESOLVED - DBD::Oracle::st fetchrow_hashref failed: ORA-25401 by perldigious

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