i have same problem... could someone help us? i changed config from utf8mb4_general_ci the data base, but the problem persist.
"SQLSTATE[42000]: Syntax error or access violation: 1064 You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '1.0.0'' COLLATE utf8mb4_unicode_ci' at line 1 (SQL: ALTER TABLE tk_extensions CHANGE version version VARCHAR(32) DEFAULT ''1.0.0'' COLLATE utf8mb4_unicode_ci)"