Seaquel
MySQL error code

MySQL error 3758

MySQL server error 3758 is ER_FUNCTIONAL_INDEX_FUNCTION_IS_NOT_ALLOWED, reported with SQLSTATE HY000.

Expression of functional index '%s' contains a disallowed function.
Error3758
NameER_FUNCTIONAL_INDEX_FUNCTION_IS_NOT_ALLOWED
SQLSTATEHY000
GroupServer errors

Source: MySQL 8.4 Error Reference