BTW I fixed the issue using the wiki’s install/repair solution:
/install/repair.php?force_utf8_on_tables=confirmed for Mysql only, when Illegal mix of collations (utf8_general_ci,IMPLICIT) and (utf8_unicode_ci,IMPLICIT) for operation ‘=’
source:
https://wiki.dolibarr.org/index.php/Troubleshooting
Martín
