Thanks for your reply. I uploaded the new extensions and ran the maintenance/update.php and the same errors are there.
I can only *see* old blog posts if I disable every social extension but BlogPage, and I can't post a new blog entry under any circumstances.
EDIT: Actually, I realized I didn't download the master files, so I just did that, reuploaded, ran php update.php and got the following:
...user_system_messages table already exists.
...user_points_weekly table already exists.
...user_points_monthly table already exists.
...user_points_archive table already exists.
...user_stats table does not contain stats_year_id field.
...user_profile table does not contain up_last_seen field.
...Comments table already exists.
...Comments_Vote table already exists.
...Comments_block table already exists.
Adding Comment_actor field to table Comments ...done.
Adding index wiki_actor to table Comments ...done.
Table Comments contains Comment_user_id field. Dropping ...done.
Table Comments contains Comment_Username field. Dropping ...done.
...wiki_user_id key doesn't exist.
...wiki_user_name key doesn't exist.
Adding cb_actor field to table Comments_block ...done.
Adding cb_actor_blocked field to table Comments_block ...done.
Adding index cb_actor to table Comments_block ...done.
Table Comments_block contains cb_user_id field. Dropping ...done.
Table Comments_block contains cb_user_name field. Dropping ...done.
Table Comments_block contains cb_user_id_blocked field. Dropping ...done.
Table Comments_block contains cb_user_name_blocked field. Dropping ...done.
...cb_user_id key doesn't exist.
Adding Comment_Vote_actor field to table Comments_Vote ...done.
Adding index Comments_Vote_actor_index to table Comments_Vote ...Wikimedia\Rdbms\DBQueryError from line 1603 of /var/www/worldafropedia/wiki/includes/libs/rdbms/database/Database.php: A database query error has occurred. Did you forget to run your application's database schema updater after upgrading?
Query: CREATE UNIQUE INDEX Comments_Vote_actor_index ON `Comments_Vote` (Comment_Vote_ID,Comment_Vote_actor)
Function: Wikimedia\Rdbms\Database::sourceFile( /var/www/worldafropedia/wiki/extensions/Comments/includes/../sql/patches/actor/add-Comment_Vote_unique_actor_index.sql )
Error: 1062 Duplicate entry '1-0' for key 'Comments_Vote_actor_index' (localhost)
after disabling comments, I ran the updater again and there were no errors.
Still same same inability to create new blog posts though
After deleting the extensions and downloading the master versions and installing them again, everything worked save for creating a new blog entry. The error involved VOTENY, so I downloaded the 1.34 stable version (1a78517 of the VoteNY extension for MediaWiki REL1_34 )
After that, almost everything is good.
One small problem though, my old blog entries dont say who created them.
at the top, they simply say
created 14:50, March 2, 2019 , last edited 21:54, March 2, 2019
whereas the new blog post I just made say:
created 16:05, February 1, 2020
thanks for the help