Ok, it looks like you have a quite long list of mods, including some that don’t seem to exist anymore:
Starting to check if the server and mods (880454836,1823412793,1699858371,1382381065,1159180273,1401061998,931088249,1456186728,1802389425,1794741816,1918139517,1657730588,1797359985,1938214103,1268176328,1906158454,1734383367,1795327310,1961414751,890509770,1249759891,1435629448,1928783630,1113901982,1369743238,864199675,1812564541) are up to date
and
[2020-04-21 23:28:50.384] [TID:13008] DATAERROR: DedicatedServerLauncher - Mod Check: Got error 5 when loading workshop page for item 1794741816 using HTTPS, trying HTTP now
[2020-04-21 23:28:51.743] [TID:13008] DATAERROR: DedicatedServerLauncher - Mod Check: The workshop page for item 1794741816 is empty
I’ve not checked each of the 26 mods, but in my experience, the more mods you put, the more chances things break (and it’s not only for Exiles, it’s valid for Fallout, Skyrim, etc…) because mods basically replace part of the game code, assets, etc… by some other code, which may or may not be compatible with other things other mods need to modify.
I’m not sure how to troubleshoot that, other than selecting the most important mods first, try the game for a day or two, then add one or two mods, rince and repeat.
Also, the more mods you use, the more chances you server will be broken when the game is updated, because mods need to be updated to work with the new version of the devkit, the more mods, the more chances that one or more of the mods will take longer to get updated.