How can I fix this issue please

How can I fix this issue please ?

A start would be providing more information.

What Os/SP ?
What exact avast version ?
Any other security (related) software installed ? (or was there)
Already performed a repair of avast ?
Already performed a clean installation of avast ?

Windows 10 home
free 2017
no
no
yes

Give the repair a try and reboot after doing so.
Let’s see if that is solving it.

U mean I should make restore factory or from what?

I mean to perform a repair of avast.
https://www.avast.com/faq.php?article=AVKB204

thank u , I made it & reboot the system bu also the same issue

R U still there ?

Run Farbar and attach two logs it creates to your next post here (FRST.txt and Addition.txt)

https://www.bleepingcomputer.com/download/farbar-recovery-scan-tool/