8.3 website in production site within subfolder crashes when Pretty URLs enabled... 500 Server Error

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Long story short... Bluehost reconfigured something on my client's server that has caused all kinds of issues and they say they didn't change anything. I can't even log into the original website in the root. It is still live though. I started a post here about that issue.http://www.concrete5.org/community/forums/5-7-discussion/keep-getti...

Bluehost changed their servers and UI for what they call "Prime" accounts. I have all "Pro" accounts with the exception of this client's account and it is currently the ONLY server environment that is causing havoc with C5.

In this particular situation, the production site says it can't recognize the server environment and spits out the code to insert in the .htaccess file. No .htacess file is present so I create one, insert the code verbatim,
>>> For Apache <<<
<IfModule mod_rewrite.c>
   RewriteEngine On
   RewriteBase /2018_pb/
   RewriteCond %{REQUEST_FILENAME} !-f
   RewriteCond %{REQUEST_FILENAME}/index.html !-f
   RewriteCond %{REQUEST_FILENAME}/index.php !-f
   RewriteRule . index.php [L]
</IfModule>
>>> For nginx <<<
location /2018_pb/ {
   try_files $uri $uri/ /2018_pb/index.php?$query_string;
}


and when I navigate to any page outside of home, it takes me to a page not found page on the original website in the root directory but with the correct path from the production site with index.php removed.

# concrete5 Version
Core Version - 8.3.0
Version Installed - 8.3.0
Database Version - 20171129190607

# concrete5 Packages
Community Store (1.3.2), Framework Theme (1.7.4)

# concrete5 Overrides
None

# concrete5 Cache Settings
Block Cache - Off
Overrides Cache - Off
Full Page Caching - Off
Full Page Cache Lifetime - Every 6 hours (default setting).

# Server Software
Apache

# Server API
cgi-fcgi

# PHP Version
5.6.32

# PHP Extensions
bcmath, bz2, calendar, cgi-fcgi, Core, ctype, curl, date, dom, ereg, exif, fileinfo, filter, ftp, gd, gettext, gmp, hash, iconv, imagick, imap, intl, ionCube Loader, json, libxml, mbstring, mcrypt, mhash, mssql, mysql, mysqli, mysqlnd, odbc, openssl, pcntl, pcre, PDO, pdo_dblib, pdo_mysql, PDO_ODBC, pdo_sqlite, Phar, posix, pspell, readline, Reflection, session, SimpleXML, soap, sockets, SourceGuardian, SPL, sqlite3, standard, tidy, tokenizer, wddx, xml, xmlreader, xmlrpc, xmlwriter, xsl, Zend Guard Loader, Zend OPcache, zip, zlib

# PHP Settings
max_execution_time - 30
log_errors_max_len - 1024
max_file_uploads - 20
max_input_nesting_level - 64
max_input_time - 60
max_input_vars - 1000
memory_limit - 256M
post_max_size - 64M
sql.safe_mode - Off
upload_max_filesize - 64M
mssql.max_links - Unlimited
mssql.max_persistent - Unlimited
mssql.max_procs - Unlimited
mssql.textlimit - Server default
mysql.max_links - Unlimited
mysql.max_persistent - Unlimited
mysqli.max_links - Unlimited
mysqli.max_persistent - Unlimited
odbc.max_links - Unlimited
odbc.max_persistent - Unlimited
pcre.backtrack_limit - 1000000
pcre.recursion_limit - 100000
session.cache_limiter - <i>no value</i>
session.gc_maxlifetime - 7200
soap.wsdl_cache_limit - 5
opcache.max_accelerated_files - 2000
opcache.max_file_size - 0
opcache.max_wasted_percentage - 5
zend_optimizerplus.max_accelerated_files - 2000
zend_optimizerplus.max_file_size - 0
zend_optimizerplus.max_wasted_percentage - 5

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