Dear All, Previously, Koha 3.16 was installed from packages method on ubuntu 12.4 LTS Desktop and was working very fine and did an uprade to 16.5.00.000 today morning, after that, I am unable to search records either in staff client or in opac. I followed, https://wiki.koha-community.org/wiki/Koha_on_ubuntu_-_packages and after upgrade did run 1) koha-rebuild-zebra -v -f gechlibrary 2) cleared all browsing cache and zebra re-indexing is throwing some warning ( ow) ==================================================== root@gechlibrary:/home/satish# koha-rebuild-zebra -v -f gechlibrary Warning: You passed -x which is already the default and is now deprecated· Zebra configuration information ================================ Zebra biblio directory = /var/lib/koha/gechlibrary/biblios Zebra authorities directory = /var/lib/koha/gechlibrary/authorities Koha directory = /usr/share/koha/intranet/cgi-bin Lockfile = /var/lock/zebra_koha_gechlibrary/rebuild/rebuild..LCK BIBLIONUMBER in : 999$c BIBLIOITEMNUMBER in : 999$d ================================ skipping authorities ==================== exporting biblio ==================== 1001................................................................................................... Records exported: 1061 ==================== REINDEXING zebra ==================== 15:27:09-16/06 zebraidx(2466) [warn] Couldn't open collection.abs [No such file or directory] 15:27:29-16/06 zebraidx(2466) [warn] Record didn't contain match fields in (bib1,Local-number) ==================== CLEANING ==================== Zebra configuration information ================================ Zebra biblio directory = /var/lib/koha/gechlibrary/biblios Zebra authorities directory = /var/lib/koha/gechlibrary/authorities Koha directory = /usr/share/koha/intranet/cgi-bin Lockfile = /var/lock/zebra_koha_gechlibrary/rebuild/rebuild..LCK BIBLIONUMBER in : 999$c BIBLIOITEMNUMBER in : 999$d ================================ ==================== exporting authority ==================== Records exported: 0 ==================== REINDEXING zebra ==================== skipping biblios ==================== CLEANING ==================== AND when I try to restart apache service, it is throwing following error: (Server version: Apache/2.2.22 (Ubuntu) Server built: Jul 24 2015 17:25:49) APACHE VERSION PROBLEM root@gechlibrary:/# sudo service apache2 restart ERROR: Syntax error on line 5 of /etc/apache2/sites-enabled/gechlibrary.conf: Invalid command '<IfVersion', perhaps misspelled or defined by a module not included in the server configuration Action 'configtest' failed. The Apache error log may have more information. ...fail! Can community, please help me to restore my opac back...?? with thanks Satish MV Librarian Govt. Engineering College, Hassan Karnataka - 573 201 INDIA. --