I put the part 1 of the German U-Boats Compilation by TKSS18 into the mods folder
https://www.subsim.com/radioroom/sho...d.php?t=214215
Then I tried to put the part 2 in the part 1 folder in mods which didn't work because 7-Zip gave me this error:
Data error : TKSS18 German U-Boats Compilation\data\Library\flag.dat
Any idea what I can do about it?