[Koha] Patron Category Type error

Dear all, When adding a new patron category, the "Category Type" dropdown list remain stuck on "General patron types" (in the Global System Preference > Patrons > AddPatronLists) when I have selected "Specific categories". Furthermore, an error message appeared when Save: Object doesn't support this property or method. Categorie.pl / Line:247 Code:0 / Char:17 Does anyone know how to solve this problem. I'm running 3.12 Thank you in advance. Iming ----- Iming Chan Translib Information Service Melbourne, Australia -- View this message in context: http://koha.1045719.n5.nabble.com/Patron-Category-Type-error-tp5756305.html Sent from the Koha-general mailing list archive at Nabble.com.