Solution : https://service.sap.com/sap/support/notes/1013830 (SAP Service marketplace login required)
Key words :
system displays unsuitable error messages, method cl_hrbas_infty_6200=>check_infty_6200_exists reason, attached correction instructions solve, infotype-specific check class, method cl_hrbas_infty_6200=>check_infty_6200_record, delimits subsequent records, sap_basis 700 support package 10, language-dependent infotypes, planned operations exist, planned operations terminates