Need help immediately - blank screen during upgrade

[Shnepsey]

Hello, everyone.

I am currently having issues with my forums, I am upgrading from 3.4.6 to 4.x.x.

Previously I had an issue with the database (read the previous topic here: http://webflake.sx/topic/15801-error-500/)

 

While upgrading, in some point it just redirects me to a blank page with a weird path.

Picture here: http://i.hizliresim.com/poP5yJ.jpg

 

I am not sure what's causing this issue, any ideas..? tried googling a bit around, couldn't find anything useful really 

 

Any help will be appreciated.

Thank you in advance.

 

 

****UPDATE****

I just tried something else, I deleted all I had saved in my  ftp  for 3.4.6, uploaded a 4.x.x version and updated (with 3.4.6's database)
It worked, kinda... it wouldn't redirect me to this blank page, it finished upgrading and everything BUT!
Now my site looks all messed up and I got no clue why.. :S

Screenshot: http://i.hizliresim.com/gAob1R.jpg


Help  please...

Edited August 12, 2015 by Shnepsey

[Shnepsey]

Check your chmod permissions

http://nullrefer.com/?http://sphlforums.com/board/Documentation/InstallationGuide/data/chmod.html

Thank you for your help but the issue is already solved, I installed a clean new version, it seems like it was missin some files hence I couldn't see my site properly.

Once I was done with that, linked it to my old database and so far it's working okay.

There are few more things to modify here but that's pretty much it.

 

Thank you for trying tho. :)

[James]

The question(s) in this support topic have been answered and the topic author has resolved their issue. This topic is now closed. If you have other questions, please open a new topic.

[customcoding]

Check your chmod permissions

http://nullrefer.com/?http://sphlforums.com/board/Documentation/InstallationGuide/data/chmod.html

[titcrunch]

you need to upgrade 3.4.6 in 3.4.7 before past in 4.0