@vanguy765 Try do an incremental update using the command line where you install mautic from a zip file. Then run database migrations after each step. This will be tedious but it should get you to the latest version. Try not do a big jump in versions, as a lot changes and some file locations and or commands may not work.
remember to do each upgrade…incremental
Then database migrate
clear cache
next upgrade
etc
Hope this helps
M.