This is the most common reason. When SCS releases a major update like 1.45, it changes the game's code. These changes can break mods, especially older ones or complex map mods. A "fix" in this context is an updated version of a mod or a small patch that makes an existing mod work with 1.45.
As the download progressed, Tom's excitement grew. He imagined himself cruising down European highways, hauling cargo from one city to another, and customizing his truck to the finest detail. Finally, after about 20 minutes, the download completed, and Tom launched the installer. download euro truck simulator 2 version 145 fix
At least 4 GB (8 GB highly recommended for 1.45's new textures). GPU: GeForce GTS 450-class (Intel HD 4000) or better. Safety Warning This is the most common reason
1.4.5 may not be available officially. You cannot legally download exact older versions outside Steam’s beta system. A "fix" in this context is an updated
Downloading and applying a "fix" for ETS2 version 1.45 carries high risks.