Zenui launcher stopped

ZF Model: ZE554KL
RAM: 4G
Firmware/APP Version: Oreo
Frequency of Occurrence: Sometime
Rooted: No
APP Name: Zenui launcher
Screenshot: https://us.v-cdn.net/6031231/uploads/ww_attachments/201909/25/151628m1ez63x9cx9hjhdd.jpg

Sometime (not frequently) zenui launcher has stopped... When it stopped,my phone became slow & unrespondsif... Hope for any solution... Tq
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