the reports dont work

hi 

first i would like to thank you for the great job on the system.

i have a problem with the reports i always get the "whoops like something wenr wrong error" message when i press on income, expenses reports 

i would be greateful for help

just to let that i have tried 1.3.4 and 1.3.6 versions and they have the same problem.

i amusing xampp as web enviroment