I am trying to upgrade 4.4.3 to 5.0. I use MySQL. I got this error from rt-setup-database:
 [Wed Jan 20 04:31:50 2021] [warning]: Couldn’t run SQL query: ALTER TABLE AttachmentsIndex MODIFY id BIGINT NOT NULL AUTO_INCREMENT, CONVERT TO CHARACTER SET utf8mb4: Specified key was too long; max key length is 3072 bytes at ./etc/upgrade/4.5.8/content line 19. (./etc/upgrade/4.5.8/content:19)
What should I do about this?