Im having a similar problem to here.
I made a wordpress site locally through MAMP - I then exported the database and attempted to import on a remote server.
The first attempt bought up an error and after browsing solutions on here i have replaced the characterset utf8mb4_unicode_520_ci to utf8_general_ci, this didn't work and i got the same error on the live mysql after import, however i did see that on the import of databases it asks for a specific characterset of the file utf8, which i then tried replacing utf8_general_ci with just utf-8, i get then the below error:
SQL query:
/*!40101 SET NAMES utf-8 */ MySQL said: Documentation
1115 - Unknown character set: 'utf'
Just to note, there are some tables importing from a specific booking plugin that has a characterset of utf8_general_cti.
Would updating the MAMP work? This is prompting me to update to new version but I wasn't sure if this would mess up my current work. Which maybe it already has!
Relates to questions on: #1115 - Unknown character set: 'utf8mb4'