Sorry to hear about this issue. Please try following these steps one by one and let us know how it goes:
Let us know if this helps or if you have any further questions.
I did the first two suggestions and it works now! Thank you so much
Hello, I have the same problem, but I dont understand what you mean with CEP folder or where im supposed to find it? I checked /Library/Application Support/Adobe, but didnt find it... Do you know if there is any video or pic by pic tutorial for the two first suggestions?
Reset Your Prefs (quick)
Press and hold the 3 modifier keys as you start Illustrator. The new preferences files are created the next time you start Illustrator.
Reset Your Prefs (Mac - more thorough)
Finder >> Go (hold down option to show hidden) >> library
Preferences>> Adobe Illustrator 24 Settings (rename to Illustrator 24 Settings folder.old)
Preferences >> Adobe >>Adobe Illustrator (rename to Adobe Illustrator.old)
Library- >> Caches >> com.adobe.illustrator (rename to com.adobe.illustrator.old)
Library >> Application Support >> Adobe >> Adobe Illustrator 24 (rename to Adobe Illustrator 24.old)