SQL Server :: Could Not Allocate Space For Object 'dbo.tbl_Notes'

I have an storedprocedure which checks the following scenario:

An email will be sent to multiple customers simulataenously. the email addresses are seperated by semi colon. I have to save that mail in a table and then in the same procedure, I have to check each email address and whether it is of any customer in the customer table.. If it is of customer, then i have to insert an entry in another notes table. For this i am doing the following operation in Stored procedure:

[Code]....

the above is the part of storedprocedure i wrote. The problem is I get an error when executing this stroed procedure in Asp.net

Could not allocate space for object 'dbo.tbl_Notes'.'PK_tbl_Notes' in database 'ProjDB' because the 'PRIMARY' filegroup is full. Create disk space by deleting unneeded files, dropping objects in the filegroup, adding additional files to the filegroup, or setting autogrowth on for existing files in the filegroup. and following that code, i am executing another SqlBulkCopy operation in front-end .. that returns the following error:

System.Data.SqlClient.SqlException: Could not allocate a new page for database 'ProjDB' because of insufficient disk space in filegroup 'PRIMARY'. Create the necessary space by dropping objects in the filegroup, adding additional files to the filegroup, or setting autogrowth on for existing files in the filegroup.