Why am i getting an exception error after logging into facebook

[Android Central Question]

I have infinix hot3,I deleted some apps,if I try to install this message comes up,sorry an unexpected error has occurred.please try again later,(Null longer exception attempt to involve virtual method

 

[B. Diddy]

Welcome to Android Central! Can you be more specific about the apps you deleted? Did you root the phone and delete any system apps or preinstalled apps?