No Internet Connection after cleaning malwares

Hi guys, I installed official source Firefox. Strangely enough, the malware omiga-search and WebGuard was installed with Firefox. On top of that, the home page displays omiga-search even when I changed it to default in the settings.

I decided to use Malwarebytes. I scanned and quarantined the malwares malwarebytes has found. I also restarted as recommended. After restarting, no networks were found.
I included the logs in the attachment.
Thanks in advance.