[Solved] Alter command denied while trying to update a product category

[mollycakes]

Not sure if this topic fits here.
I am getting the following error after I try to save a new category. Does anyone know what this means and how I can fix this. This is all new to me.

ALTER command denied to user 'pcom_molly'@'localhost' for table 'ms_layered_cache'
ALTER TABLE `ms_layered_cache` ADD `c3` TINYINT UNSIGNED NOT NULL DEFAULT '0'

[mollycakes]

Okay I figured out that I had not set my user privileges to Alter. Now I am receiving a new error.

Duplicate column name 'c2'
ALTER TABLE `ms_layered_cache` ADD `c2` TINYINT UNSIGNED NOT NULL DEFAULT '0'