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LS version: Versão 5.3.26+220720

Actived survey, but having this error:500: Erro interno do servidor
CDbCommand failed to execute the SQL statement: SQLSTATE[42883]: Undefined function: 7 ERROR: operator does not exist: text = integer
LINE 1: ..." WHERE "t"."qid"=10191 AND (attribute='hidden' AND value=1)
^
HINT: No operator matches the given name and argument types. You might need to add explicit type casts. I´m working with quotas: if frist question answer is No >> finish survey.

But the error is shown as soon as Next button is clicked to start the survey.

Without the quota everything woks fine.

Atacched survey lss file.

Thanks
 

It works for me in version 5.6.5. Update to the latest version and retest.