Seaquel
MySQL error code

MySQL error 1721

MySQL server error 1721 is ER_PLUGIN_NO_INSTALL, reported with SQLSTATE HY000.

Plugin '%s' is marked as not dynamically installable. You have to stop the server to install it.
Error1721
NameER_PLUGIN_NO_INSTALL
SQLSTATEHY000
GroupServer errors

Source: MySQL 8.4 Error Reference