Are you using a jailbroken phone? It looks like your SpringBoard process is crashing so if you are using any modifications, you could try disabling one by one and seeing which one is the cause.
Did you try to do any edits to the SpringBoard executable? What Mobile Substrate addons have you installed?
Hello Guy, The easiest fix for this would be to perform a full restore, without restoring to a backup, and re-jailbreaking, but let's try and exhaust all other possible fixes before doing so. First thing I would try in your case is if you have OpenSSH on your iPhone and you have something like WinSCP (or any other program related to it) installed, try to SSH into your device and remove any tweaks you may have installed/modified before the crashing began. Second, if you have the latest Mobile Substrate installed, reboot your phone and hold the up volume button as it is booting, this will place your phone into safe mode and you should be able to get into your phone without the constant crashes. Try either of these methods and report back any changes. Hope this helped! - iEnthusiast
Are you currently on a tethered jailbreak? If so, are you booting tethered correctly? If you are booting tethered correctly and it still doesn't help, I would try to SSH into the iPhone and remove Winterboard, then try going into safe mode afterwards. If safe mode, removing files, etc. doesn't work, then you may have to restore.