PEtab import: Fixup for 888679, handle TypeError (#1522)
PEtab import: Fixup for 888679, handle TypeError (#1522)

Fixes incomplete exception handling introduced in 88867922309862fdced413667fb050fdf25f1798
FFroehlich/AMICI,FFroehlich/AMICI,FFroehlich/AMICI,FFroehlich/AMICI