Google indexing my site with https I Want to Redirect it over https but 404

I don’t know why Google is indexing my wordpress website with https even I have not installed any SSL certificate, it causes matched content etc. So, I have tried to redirect whole domain to https by installing some plugins and some changes made in .htaccess file with these different codes

RewriteEngine on
RewriteCond %{HTTP_HOST} ^www\.(.*)$ [NC]
RewriteRule ^(.*)$ https://%1/$1 [R=301,L]
OR
RewriteCond %{HTTPS} !on
RewriteRule (.*) https://%{HTTP_HOST}%{REQUEST_URI} [R=301,L]

but my site has stopped loading internal pages(articles/posts) was showing 404 except homepage but the homepage is working fine.
if I change the Permalink to Plain i.e. https://examplesite.com/?p=123 then every post is working but not with Custom Permalink that is
https://examplesite.com/%postname%.html
I Had installed Easy HTTPS (SSL) Redirection Plugin for WordPress and .htaccess File was

# BEGIN HTTPS Redirection Plugin
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteCond %{SERVER_PORT} !^443$
RewriteRule ^(.*)$ https://%{HTTP_HOST}%{REQUEST_URI} [L,R=301]
</IfModule>
# END HTTPS Redirection Plugin

<IfModule mod_rewrite.c>
<IfModule mod_php5.c>
php_value upload_max_filesize 30M
php_value post_max_size 30M
</IfModule>
# BEGIN W3TC Browser Cache
<IfModule mod_deflate.c>
AddOutputFilterByType DEFLATE text/css text/x-component application/x-javascript application/javascript text/javascript text/x-js text/html text/richtext image/svg+xml text/plain text/xsd text/xsl text/xml image/bmp application/java application/msword application/vnd.ms-fontobject application/x-msdownload image/x-icon image/webp application/json application/vnd.ms-access application/vnd.ms-project application/x-font-otf application/vnd.ms-opentype application/vnd.oasis.opendocument.database application/vnd.oasis.opendocument.chart application/vnd.oasis.opendocument.formula application/vnd.oasis.opendocument.graphics application/vnd.oasis.opendocument.presentation application/vnd.oasis.opendocument.spreadsheet application/vnd.oasis.opendocument.text audio/ogg application/pdf application/vnd.ms-powerpoint image/svg+xml application/x-shockwave-flash image/tiff application/x-font-ttf application/vnd.ms-opentype audio/wav application/vnd.ms-write application/font-woff application/font-woff2 application/vnd.ms-excel
<IfModule mod_mime.c>
# DEFLATE by extension
AddOutputFilter DEFLATE js css htm html xml
</IfModule>
</IfModule>
<FilesMatch "\.(htm|rtf|rtx|svg|txt|xsd|xsl|xml|HTM|RTF|RTX|SVG|TXT|XSD|XSL|XML)$">
<IfModule mod_headers.c>
Header append Vary User-Agent env=!dont-vary
</IfModule>
</FilesMatch>
<FilesMatch "\.(bmp|class|doc|docx|eot|exe|ico|webp|json|mdb|mpp|otf|_otf|odb|odc|odf|odg|odp|ods|odt|ogg|pdf|pot|pps|ppt|pptx|svg|svgz|swf|tif|tiff|ttf|ttc|_ttf|wav|wri|woff|woff2|xla|xls|xlsx|xlt|xlw|BMP|CLASS|DOC|DOCX|EOT|EXE|ICO|WEBP|JSON|MDB|MPP|OTF|_OTF|ODB|ODC|ODF|ODG|ODP|ODS|ODT|OGG|PDF|POT|PPS|PPT|PPTX|SVG|SVGZ|SWF|TIF|TIFF|TTF|TTC|_TTF|WAV|WRI|WOFF|WOFF2|XLA|XLS|XLSX|XLT|XLW)$">
<IfModule mod_headers.c>
Header unset Last-Modified
</IfModule>
</FilesMatch>
# END W3TC Browser Cache

I have again changed its settings to old one due to 404 error on every post.
Please help me How to Fix this permalink or any other issue related to my site.

The page I need help with: [log in to see the link]