The launcher gets stuck at 88% patching dat files and then it fails. I have tried different solutions I've read such as: using steam launcher, using standalone launcher trought lutris, using repair data option; I have tried deleting dat/datx files, deleting "downloads" and "forward" directories, limiting download speed of the game, changing game proxy option; I have tried diferrent versions of proton, protonge, wine. Nothing works. Please help me.

Update: Lotro launcher works if I use a VPN. Thank you all for helping me.