Fatal error: Uncaught TypeError: strtotime(): Argument #2 ($baseTimestamp) must be of type ?int, string given in /in/4iOIk:3
Stack trace:
#0 /in/4iOIk(3): strtotime('- 2 days', '2014-04-22')
#1 {main}
thrown in /in/4iOIk on line 3
Process exited with code 255.