Should be multibit HD which should have a button "repair wallet" that should do it.
If Im wrong and its multibit classic "reset and rescan blockchain" (something along those lines) should do it.
Yep. Looks like those should fix it. They will rescan the entire blockchain and remove your unconfirmed transactions.
ok guys, will try and rescan the blockchain. as soon as I tried this, i will report back to you.
for now, let me thank you for fast help- great community as always!