but i think i know now my problem i found here in forum this guide https://forum.ets2mp.com/index.php?/topic/24972-current-mp-version-0206-ets2-12227s-none-opt-out-of-all-beta-programs-and-ats-1004s-none-opt-out-of-all-beta-pr/
and he write it works only with 64 bit version i have win 7 64 bit and if i start euro truck 2 singel player in steam start game it works and if i try to start euro truck 2 64 bit any time error so sorry guys for spamming here i think its just my stupid pc what dont want to run game in 64 bit and this is the reason why maybe nothink happens on mp client if i want to start it ty for helping guys so i think i can now only play alone single player on 32 bit version and found guide just to delete x86 folder and let just x64 doesnt helps game doesnt start after it ty very mutch guys