Is there a video on how to setup playerdatasync?

i downloaded the latest version which 1.2.7 RELEASE for my paper 1.21.10 server and i keep getting this error on startup
[15:40:52 ERROR]: [PlayerDataSync] Could not connect to mysql database: Could not create connection to database server. Attempted reconnect 3 times. Giving up.
[15:40:52 ERROR]: [PlayerDataSync] Please check your database configuration and ensure the database server is running