Unknown IP logged on ‘as me’?? During Firewall learning mode

worried as this hapenned while no firewall in place during learning mode PLUS i have newspaper theme (traffic trade)
came back to wordpress today from aiowp. firewall was in learning more for 2 hours while i went through as much as possible as quickly as possible – posts plug in settings etc as per instructions.
finished, all looked ok, put firewall into enabled mode.
during that time had rec’d email notifying me that my own user login name had been used for an unknown IP addy in paris france. tried to block it with response – you can’t block your own ip.
wordfence showing this ip as currently logged in.
looked in aiowp (which i have turned off its security and firewall but not yet disabled it) and it is showing me alone at my correct ip address.
back to wordfence and it is showing me the pages visited by that login in my name, neither of which i have visited today.
on live traffic it shows this french ip address making several login attempts before it got in
so i’m pretty worried someone is actually in my site now.
only other peculiar thing to mention is that at the end of the first and successful scan, despite a ‘no problems’ outcome, at the end of detailed scan it had this text
[Aug 21 22:20:49] Notice: Undefined index: adrotate-pro/adrotate-pro.php in /home/gibbsyns3/public_html/wp-content/plugins/adrotate-pro/library/update-api.php on line 73 Notice: unserialize(): Error at offset 0 of 2136 bytes in /home/gibbsyns3/public_html/wp-content/plugins/js_composer/include/classes/updaters/class-vc-updating-manager.php on line 149 Warning: Creating default object from empty value in /home/gibbsyns3/public_html/wp-content/plugins/js_composer/include/classes/updaters/class-vc-updating-manager.php on line 118 Notice: Undefined property: stdClass::$sections in /home/gibbsyns3/public_html/wp-content/plugins/js_composer/include/classes/updaters/class-vc-updating-manager.php on line 119 0

wp 4.8.1 newspaper 8.1 theme php 7.1

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