Tmp folder missing after server migration


I know it´s not a problem for this forum, but just in case someone had the same problem and could help me out to fix this issue… I´ve been with this problem already a week and my hosting services seem unable to fix it

the tmp folder route seems to have changed after migration and I can´t upload any image to the site.
I´ve tried specifying the route on the php.ini and wp-config archives, but it´s not working.
Plugins and core updates work fine though…

Any ideas?