Hi,
Invoice blocked based tolerence limit with tolerence key by logistic invoice verification(MIRO)
is released for payment in t.code:MRBR
Also you can use t.code:FB02 and release by entering invoice document number,
next screen click vendor account and in next screen in field of "Pmnt Block" make to change Free for payment and save.
You can also use t.code:FBL1N to release the blocked vendor invoice.
Regards,
Biju K