Dear ErebosMu players,
There was a faulty patch, please remove folder "cVersion" from Data Folder (ErebosMuS17/Data/cVersion as well as from main client folder) in order to fix this issue with nonstop patching after each new launch.
This mistake been corrected and new client re-uploaded. Once folder is deleted it will download new cVersion and your client will be up to date.
We are very sorry for the inconvenience.
Erebos Mu team