App Not Installed

[amvpaglinawan]

Model: ZE552KL
RAM: 2GB
Firmware/App Version: OPR1.170623.026.WW_user_80.30.123.118_20181102
Location:
Frequency of Occurrence:
Rooted: No
App Name: ZenTalk
Description: How do I fix "app not installed" whenever I try to install an apk file that is downloaded from browser?

How do I fix "app not installed" whenever I try to install an apk file that is downloaded from browser?

[ServiceH_ASUS]

Hi amvpaglinawan Good day Please kindly tell me which browser do you use. Does it happen every time and different apk files? Please help to confirm , thank you:)