programme show 'unexpected internal c-tree error #213', at the time of starting.
Looks strange, Never come across such error,
you have project backup ? .pro or .csv ? if not take atleast .pro file backup.
Close CBF, Digivis and freelance related editors then repair freelance installation from programs and features. may this help in recovering from issue.
secondly observed from image the license status bar upper line in orange color shows you have utilised max number of lic I/O and max number of process station, just make sure you are running outof license ? or license and hw lic key is plugged properly ?
Try to repair and check if lic and all is ok and check if that works ? else revert back.