Syntax error or access violation: 1071 Specified key was too long; max key length is 767 bytes
Rozwiązanie:
$ sudo mysql -u root -p MariaDB [(none)]> use nextcloud; MariaDB [nextcloud]> set global innodb_large_prefix=on; MariaDB [nextcloud]> set global innodb_file_format=Barracuda; $ sudo -u www-data php occ maintenance:repair