Fatal error

[eluser]Yash[/eluser]
Learn how to find errors and remove those.Taking help for each error will take whole life to build a simple app..just a joke

Some tips for debug

try to disable external libraries
check for proper syntax.
Don't mess system files fo CI..

debug line by line..I mean open file where error appears.Like in your case something is wrong happened when we try to load exception or similar..so try to disable library and then debug.