Upgrade Issue::Red flag on SugarCRM upgrade 8.0.4 to 9.02

Has anyone faced the below issue while upgrading SugarCRM to 9.x?

[2020-02-17T06:39:31+00:00] INFO => F: [Issue 234][red][cannotPerformCollationConversionOnTable][579][Unable to perform character set/collation conversion: (utf8mb4_general_ci) on table: kbcontents] Unable to perform character set/collation conversion: (utf8mb4_general_ci) on table: kbcontents
[2020-02-17T06:39:31+00:00] INFO => F: [Issue 235][red][cannotPerformCollationConversionOnTable][579][Unable to perform character set/collation conversion: (utf8mb4_general_ci) on table: kbcontents_audit] Unable to perform character set/collation conversion: (utf8mb4_general_ci) on table: kbcontents_audit