Hi @aravindiitd2022,
You might want to have a look at this post here, where the user has accounted the same error and has suggested a solution: A database error has occurred: SQLSTATE[HY000] [2002] No such file or directory (SQL: create table `announcement_types` (`type_id` bigint not null auto_increment primary key - #2 by gonzalognzl
-Roger
PKP Team