SQL Server - code helper not working

Hello - every time I press CTRL + SPACE; I get this error; can you please suggest me a solution?

/ SQL Error (15009): The object 'cdc.fn_cdc_get_allchanges ... ' does not exist in database 'xxx' or is invalid for this operation. /

My knowledge with sql server is limited but I do understand the usage of CDC; my question is why does it is looking for this and what is the workaround?

Thanks! Sanjeev