The installer have not detected GTID mode.
Your database server have GTID mode is on, It might make a trouble in Database installation.
Details: You might face the error something like Statement violates GTID consistency.
You should ask hosting provider to make off GTID off.
You can make off GTID mode as decribed in the
https://dev.mysql.com/doc/refman/5.7/en/replication-mode-change-online-disable-gtids.html
Error detail:
This test checks to make sure the database server should not have GTID mode enabled.