Can't Add or Edit to new database

I am migrating to PHP. As a result, I have started to use PHPRunner. After lots of trial and error I was able to link the MS Access database. Though I can access the data, unfortunately I can't add or edit any of the tables. I get the following message;
<<< Record was NOT added >>>

Source: Microsoft JET Database Engine

Description: Operation must use an updateable query.
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