Messaging crashed after importing from iOS?

[hohoXD123]

I tried to import my messages from IOS to Android 4.2 using isms2droid and SMS Backup & Restore. Now, I can see all the people that I sent a message to, but as soon as I try to go into the conversation, Messaging crashes and all the conversations are gone, I can still use the phone just not Messaging. However, restarting the phone allows me to see the names again, but again as soon as I enter a conversation they disappear. I tried to delete all the messages using SMS Backup & Restore but it just stalls on the "deleting messages" box. I've tried alternative messaging apps but they all crash, i've tried using other apps to delete the messages, still nothing. Now I can't delete any messages nor send any new ones, can anyone help please?