Upgrade to 2.4.8 not working


I am upgrading from 2.4.6 to 2.4.8 using full package (downloaded the OJS 2.4.8, extracted using 7zip on windows XP and uploaded using filezila, server is Linux). The upgrades through web interface gives blank page, on refresh/enter is shows

	Errors occurred processing this form:
	The form was not submitted properly.

the upgrade is on http://pubs.iscience.in/testojs/

I tried the fresh install as well. It is also not working.

Not able to figure out the problem. please help.

You haven’t mentioned addressing the necessary file permissions for the public, cache, and files_dir. If the webserver cannot write to these files, you will certainly get a fatal PHP error. See https://pkp.sfu.ca/wiki/index.php?title=PKP_Frequently_Asked_Questions#I.27m_having_file_permission_problems.3B_how_should_I_set_file_permissions.3F

The file permissions problem is a good first guess, but more details on the exact error will be available in the error log:

Finally, note that the process of extracting on Windows and then uploading to Linux is very unlikely to succeed.

Try extracting the tar.gz file directly on the Linux box, if possible.

thank you for first hand advice. I will try with the steps provided and see if could work.