Site Error After Quick Reload

Hello!

I have a site at WordPress, and after the new installation I have a strange error, after a quick reload My site show a lot of junk code without any content and html code.

I use WP Super Cache and Wordfence.

Here is an example of the junk codes:

??]ms???l??????8??z???5??iNg?????$! I?_?{~??v??H ?(??]?V??X”?
,??} ~??????d????????NH?q???’?{z~J>?????I??!??)W\?4t???Hk?T??WWW?~[?{??{?yu?9??(????u?y?
???8=?????g?5-?I????Q2????v?.b?Lv?3~y?:?b?r?o?”??:j)v?\????#*S??~???y?”??????a???D??????#?T??$?????q”??v?{?8y ?????C?gsu>m?M[D?0? ?:b?P?/??? ????/-?R&~;%y?;?T?? ?%??3OGB*?SS?VA?!??Kj???:?vL??mM?w?o ??L?W?r?LG?11{?M]??O X#?-?#????*??M?C??L?4%?’I? yL.???v?8$/?I???+ O??M?pu?*?Bv?# H>~?H????g(-\}????+??; ?AQ?)]úoL#h???1?;?e????(9(Jx???I?%Lv?sy????^?F ??????exN?as?w?$?N翞C?!q??”?*??”?????v?-
???`???H??????
;?)???]]??t}??C5???6 ?3[????r^]K??????hK ?C%??qU?X|????jb?a??f2’g?P*??G??3Z2?U?n??hxU????/??0M???]????VDC?d S?9?$!?#??i???! U_??;???F8??c?'”???i= ???R?????q??L9?y???????K?@??F??0_]2y?o??a?s??J?Vzp??o?U?QPj??>?????}Z%W?UDc>??*?J6/?Y?a???mk^??ln?=}??)y#???πTo???A??;??D/???l66Y???sy???9??? ?7????|?4~????~f?n?E\?pf??s??@\??$?а?:~??BB/{ 9>7-?? g??????a9???”b? “]???m???i???D?%o??J??? ??_?”??P\?S.?1??69
…

Thanks for help in advance!