Undefined index: priority
First of all thanks for your awesome job, you save me lot of times since many years for get a clean sitemap.
Since few days, SEMRush and me are getting a weird error "Undefined index: priority". In the file xml.php at line 21. This error appear randomly. I dont understand why im getting this error sometimes. I have set the priority correctly each time I add a new entry, like : "$sitemap->add(route('server.create', $top->subdomain), null, 1, 'monthly');".
I think this is an issue but why its happens now and not before ? I'm using the v2.6.5 from old namespace roumen/sitemap on github. But I saw the source code here about xml.php there's still the line 21 about priority without isset checks.
Have you an idea about this issue ? Thanks by advance.