Custom booking form field not saving

You have to save them somewhere like in the em_meta table or in the booking_meta field of the booking table (stored as a serialized array, so add to it, don’t replace it) and bring it up elsewhere. If you read the tutorials, you could quite easily add extra fields etc.

http://wp-events-plugin.com/tutorials/ and this may help you

Hata!: SQLSTATE[HY000] [1045] Access denied for user 'divattrend_liink'@'localhost' (using password: YES)