For several days, certain Farming Simulator players (both 19 and 22) obtaining mods from unauthorized sites have been victims of a malicious script which deletes their saves as well as all the mods in their folder.
Advice: favor reliable sources and avoid others
If possible, only download mods from the official modhub or serious sites like those of the modders themselves.
The malicious LUA script is called "WindrowerExt" but it may have other names as well.
A malicious mod detection tool
The FSG Modding team has just updated its mod manager to include a malicious code detector. If you already use this utility we advise you to update it and if not, you can download it from the official github by following this link