I've tried to access in your digitalocean account, but it seems like you provided that login credentials is not working.
Perhaps you can try this following step and see how it goes?
STEP 1 : Truncate this table run this query in your database
TRUNCATE TABLE `chry_easyblog_acl_group`;
Step 2 : After you truncate all the record in this table `chry_easyblog_acl_group` then try upload the launcher installer through in Joomla installer and see how it goes?
STEP 3 : If the installation is work fine, then re-save all the ACL user group settings from backend > Easyblog > ACL > select each acl user group > click save.
Hope this help.