After placing a Support module (Support Requester, support provider) a error shows up:

...[] spawn {
while {true} do {
waitUntil {|#|BIS_supp_refresh};
call BIS_SUPP_refresh...'
Error Undefined variable in expression: bis_supp_refresh
File A3\modules_f\supports\init_common.sqf, line 32 {F20747}