Unknown login error after restore of mediawiki from backup

Hi -

Our omeka/mediawiki system was restored from a backup to the original server where the site is hosted. Our system information is shown below, and the version of mediawiki we are running is 1.27.1 (because it works with the UVA scribe theme). Now users get an “unknown login error” when they go to this url and try to login:

https://www.nsmlv.org/omeka/scripto/login

Additionally, I think this url should open a web page but it does not:

http://www.nsmlv.org/mediawiki/index.php

There is an error in the https error.log file :

[Mon Jun 04 00:54:35 2018] [warn] [client 173.236.152.133] mod_fcgid: stderr: PHP Warning: require(/home/lan_t3rn/nsmlv.org/mediawiki/includes/objectcache/ObjectCache.php): failed to open stream: No such file or directory in /home/lan_t3rn/nsmlv.org/mediawiki/includes/AutoLoader.php on line 81
[Mon Jun 04 00:54:35 2018] [warn] [client 173.236.152.133] mod_fcgid: stderr: PHP Fatal error: require(): Failed opening required ‘/home/lan_t3rn/nsmlv.org/mediawiki/includes/objectcache/ObjectCache.php’ (include_path=’/home/lan_t3rn/nsmlv.org/mediawiki/vendor/pear/pear_exception:/home/lan_t3rn/nsmlv.org/mediawiki/vendor/pear/console_getopt:/home/lan_t3rn/nsmlv.org/mediawiki/vendor/pear/pear-core-minimal/src:/home/lan_t3rn/nsmlv.org/mediawiki/vendor/pear/mail_mime:/home/lan_t3rn/nsmlv.org/mediawiki/vendor/pear/mail_mime-decode:/home/lan_t3rn/nsmlv.org/mediawiki/vendor/pear/net_socket:/home/lan_t3rn/nsmlv.org/mediawiki/vendor/pear/net_smtp:/home/lan_t3rn/nsmlv.org/mediawiki/vendor/pear/mail:.:’) in /home/lan_t3rn/nsmlv.org/mediawiki/includes/AutoLoader.php on line 81
[Mon Jun 04 00:54:35 2018] [warn] [client 173.236.152.133] mod_fcgid: stderr: PHP Warning: require(/home/lan_t3rn/nsmlv.org/mediawiki/includes/objectcache/ObjectCache.php): failed to open stream: No such file or directory in /home/lan_t3rn/nsmlv.org/mediawiki/includes/AutoLoader.php on line 81
[Mon Jun 04 00:54:35 2018] [warn] [client 173.236.152.133] mod_fcgid: stderr: PHP Fatal error: require(): Failed opening required ‘/home/lan_t3rn/nsmlv.org/mediawiki/includes/objectcache/ObjectCache.php’ (include_path=’/home/lan_t3rn/nsmlv.org/mediawiki/vendor/pear/pear_exception:/home/lan_t3rn/nsmlv.org/mediawiki/vendor/pear/console_getopt:/home/lan_t3rn/nsmlv.org/mediawiki/vendor/pear/pear-core-minimal/src:/home/lan_t3rn/nsmlv.org/mediawiki/vendor/pear/mail_mime:/home/lan_t3rn/nsmlv.org/mediawiki/vendor/pear/mail_mime-decode:/home/lan_t3rn/nsmlv.org/mediawiki/vendor/pear/net_socket:/home/lan_t3rn/nsmlv.org/mediawiki/vendor/pear/net_smtp:/home/lan_t3rn/nsmlv.org/mediawiki/vendor/pear/mail:.:’) in /home/lan_t3rn/nsmlv.org/mediawiki/includes/AutoLoader.php on line 81
[Mon Jun 04 00:54:35 2018] [warn] [client 173.236.152.133] mod_fcgid: stderr: PHP Warning: require(/home/lan_t3rn/nsmlv.org/mediawiki/includes/objectcache/ObjectCache.php): failed to open stream: No such file or directory in /home/lan_t3rn/nsmlv.org/mediawiki/includes/AutoLoader.php on line 81

When I check here:
nsmlv.org/mediawiki/includes/AutoLoader.php on line 81
This is the code snippet, line 81 starts with $filename:

            // Make an absolute path, this improves performance by avoiding some stat calls
            if ( substr( $filename, 0, 1 ) != '/' && substr( $filename, 1, 1 ) != ':' ) {
                    global $IP;
                    $filename = "$IP/$filename";
            }

            require $filename;
    }

Can you please tell me how to fix this problem?

Here is my system information:

User
Browser Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:60.0) Gecko/20100101 Firefox/60.0
Role super
System
Omeka 2.4.1
PHP 7.0.30 (cgi-fcgi)
OS Linux 4.4.126-0.ksplice-lts-generic x86_64
MySQL Server 5.6.34
MySQL Client mysqlnd 5.0.12-dev - 20150407 - $Id: b5c5906d452ec590732a93b051f3827e02749b83 $
PHP Extensions
Regular bcmath, bz2, calendar, cgi-fcgi, Core, ctype, curl, date, dom, exif, fileinfo, filter, ftp, gd, gettext, hash, iconv, imagick, imap, json, libxml, mbstring, mcrypt, mysqli, mysqlnd, openssl, pcntl, pcre, PDO, pdo_mysql, pdo_sqlite, posix, pspell, Reflection, session, SimpleXML, soap, sockets, SPL, sqlite3, standard, tokenizer, xml, xmlreader, xmlrpc, xmlwriter, xsl, Zend OPcache, zip, zlib
Zend Zend OPcache
Plugins
CsvExport 1.0.1
Dropbox 0.7.2
DublinCoreExtended 2.0.1
Export 2.0
ItemOrder 2.0.2
Scripto 2.2
SimplePages 3.0.7
Themes
Scribe 2.0 (current)
berlin 2.3.1
default 2.3.2
seasons 2.3.1

Thank you for your help

Please close this ticket. I restored from a different backup and the system is working. Thanks