Xperia Z3 :: Force Close Loop - Unrooted

My phone today seems to be stuck in a force close loop. It pops up down the bottom of the phone in a black box 'forcing close of player' and 'closed?', every few seconds, exiting whatever app I am currently using. This only happens immediately after I turn the screen on, for about 20 seconds and then stops until I turn the screen off and then on again. I have not rooted the phone or done anything out of the ordinary. I did download a couple of apps from the play store and have since deleted them, but I still have the problem. I have read to clear the cache partition to fix this issue, but I believe it is in recovery mode which the Z3 does not have. I would prefer not to do a hard reset. Is this my only option?