Read the error message:
Quote:
Invalid SQL: ALTER TABLE forum ADD info1 smallint(6) DEFAULT '0' NOT NULL
mysql error: Duplicate column name 'info1'
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You are trying to ADD a column in the forum table called "info1" but it's already there. Of course, you cannot add it again and again.
To remove that column, run this query:
PHP Code:
ALTER TABLE forum DROP info1
Run it only once - you cannot drop a column again and again. Same with adding a column. Do it only once. What are you using to run queries?