akismet .htaccess order not allowed error
I'm a little bit desperate at all.
I can't access to wordpress admin site via browser (it appears a entire white page, without any error message), so I check via FTP the apache2 log files.
The error log file is full of error lines like the following since days ago:
Tue Aug 19 17:27:45.701152 2014] [core:alert] [pid 19099] [client 18.104.22.168:6407] /var/www/wp-content/plugins/akismet/.htaccess: order not allowed here, referer: http://theforeigner.es/el-yihadismo-como-cuento-de-nunca-acabar/
I have any problem since yesterday when I installed a new theme. Then, it appears a different error line in the log:
[Wed Aug 20 08:50:57.995767 2014] [core:alert] [pid 21000] [client 22.214.171.124:55746] /var/www/wp-content/plugins/akismet/.htaccess: order not allowed here, referer: http://theforeigner.es/wp-admin/customize.php?theme=the-newswire
How can I solve this problem in order to restore my wordpress webpage? I tried to disable all plugins renaming the plugins folder, but the page is still appearing fully blank.
I tried also to rename the theme folder, but still no solution.
The only change I noted it is that when I try to go to wp-admin on the browser (myIP/wp-login.php) it redirects me to http://theforeigner.es/wp-login.php?redirect_to=http%3A%2F%2F126.96.36.199%2Fwp-admin%2Findex.php&reauth=1 but without any result.
Thanks in advance!