[Koha] Not showing OPAC pages after migration

Hello, Currently with Koha 17.11.01 / Package Installation/ Ubuntu 16.04 with MariaDB (mysql Ver 15.1 Distrib 10.0.31 Maria DB) -- After migration of Koha from 16.11.11 on Ubuntu 14.04 (system1) To 17.11.1 on Ubuntu 16.04 (system2), mysqldump backup was taken and did restoration on system2. db-schema and index has been done. After this, I am not able to view opac pages on system2 (new machine). getting Error 404 message: the requested page is not available. and verified that (as per the wikipage ang blogs) 1) template is set to pages.tt in pages.pl 2) pages.tt is also created on system2. Could please give some directions to solve this problem ? With Thanks, Satish MV Librarian Govt. Engineering College, Hassan. Karnataka.