Wirelessly posted (BlackBerry8900/ Profile/MIDP-2.1 Configuration/CLDC-1.1 VendorID/142)

For some bizarre reason I can't seem to receive pictures or voice notes from my contacts anymore but larger files like mp3 & mp4 will go come through.. When sending me a pic via BBM my contacts say a notification say "Gawn failed to accept request" appears..
Does anyone have a solution to this issue??