ok i figured out i cannot fix this problem. the vcf must be the one causing the issue and i suspect it is the apostrophe character screwing up your sqlite statement when you try to save it the db.

turns out the vcf attachment is not yet in the messages table. it was recently sent by a friend and it is still sitting on whatsapp servers with an undelivered status. everytime i fire up whatsup, it will attempt to download the vcf, and succeed. but it will fail when inserting it into messages table.

i had to register with android whatsapp again to receive the offending message. i am now waiting for 5 mins to elapse so i can launch whatsup again and reregister again.