Solution about this

I have owncloud on centos 6.9, can not appear in web browser but can already in sync to pc client
and have absolute no ideia about what to do.

Please give me a solution

hello , please give us your owncloud version and your httpd.log , you must have a 500 Error .

my owncloud version
but I do not know how to see httpd.log
I use Apache / 2.2.15 and PHP / 5.4.45