Can not administer my website after deleting admin user from phpMyAdmin

Hi,

As stated, I deleted my admin user from phpMyAdmin. I think I’m running multisite (though I think I don’t need it as I use it for one website only, but it was not me who installed it..)

previously, I hovered my mouse over “My sites” and I saw “network admin”, from there I was able to install and edit plugins and themes. Now i don’t see it anywhere.. when I hover over plugins, I only see “Admin renamer extended” – that’s all!!!

I have created another admin user with a different name (the reason was Brute force attacks and blocks from my host provider, this hasn’t solved the problem, though..) prior to deleting the first one with Admin name.. It allows me to use the plugin, but I want to install other plugins and edit my theme..

any suggestions???

maybe I can just skip that multisite install.. or other variants.. please give me a link which you think might be helpful, but also please explain here as I’m very stupid…

sorry for dummy language, I’m not good neither in WP, nor in English:)

Best,

Alex