Echoes of the Void

I started deleting the mods, there were 6 of them, one by one. Without the data mod, the game wouldn't launch, and the music and text would disappear. Without the other mods, it would still freeze after saving. I guess I need to restart the battle.

Added 1 minute ago
I deleted the mods, and it still didn't work.

Don't get confused. The data folder should contain a maximum of 7 files:
a2p1-data.pak
a2p1-texts.pak
data.pak
GEmaps.pak
sound.pak
soundsfx.pak
texts.pak

These are not mods, but the game's database, so you shouldn't delete them.

The UserMods, UserCampaigns, and Maps folders should be empty, except for the map you are currently playing (in this case, VoidEcho.h5m). Because maps can contain mods, and authors don't always mention this.

And as Ment correctly pointed out, in this case, you need to start the map from the beginning, because the influence of the mod from the save often doesn't disappear when the mod is deleted.