Installed update, cannot log in!

And I now see that Semalt Blocker is only compatible up to 4.0.1, and I’m running 4.1.1. Please help though, as I’m dead in the water.

Ah. I see, I’ll just delete it using FTP.

But do I need to do anything with pluggable.php?

Done.

Hi, so far so good with the latest update and WP 4.1.1. Change the compatibility info?

A bit more info. On another one of my sites, also in WP 4.1.1, I get the following code on the WP login page, above the normal username/password fields, and logging in works (Noting this because clearly something is wrong):

Warning: Cannot modify header information - headers already sent by (output started at /home/[username]/[site].com/wp-content/plugins/semalt/semalt.php:29) in /home/[username]/[site].com/wp-includes/pluggable.php on line 949

Warning: Cannot modify header information - headers already sent by (output started at /home/[username]/[site].com/wp-content/plugins/semalt/semalt.php:29) in /home/[username]/[site].com/wp-includes/pluggable.php on line 950

Warning: Cannot modify header information - headers already sent by (output started at /home/[username]/[site].com/wp-content/plugins/semalt/semalt.php:29) in /home/[username]/[site].com/wp-includes/pluggable.php on line 951

Warning: Cannot modify header information - headers already sent by (output started at /home/[username]/[site].com/wp-content/plugins/semalt/semalt.php:29) in /home/[username]/[site].com/wp-includes/pluggable.php on line 954

Warning: Cannot modify header information - headers already sent by (output started at /home/[username]/[site].com/wp-content/plugins/semalt/semalt.php:29) in /home/[username]/[site].com/wp-includes/pluggable.php on line 955

Warning: Cannot modify header information - headers already sent by (output started at /home/[username]/[site].com/wp-content/plugins/semalt/semalt.php:29) in /home/[username]/[site].com/wp-includes/pluggable.php on line 956

Warning: Cannot modify header information - headers already sent by (output started at /home/[username]/[site].com/wp-content/plugins/semalt/semalt.php:29) in /home/[username]/[site].com/wp-includes/pluggable.php on line 957

Also, kdunham’s post is very disconcerting, and I agree that this is a huge snafu, in that, as he says “many might have this problem, and not even realize it.” So I’ll just deactivate on both my sites until this is confirmed tested on 4.1.1, and the Google error is confirmed fixed.

Thank You!

Hi David, can you please fill out this form and get in touch with me over email to solve this? Please confirm you’re also using v1.1.2. Thanks

Done. And yes, I’m using v1.1.2.

Thanks,

David

I’ve been able to test on another site and now updated to 1.1.3. This is live on peadig.com and have tested with a couple of sites.

Can you confirm this works for you now?

Sadly, though the Google Redirect Issue seems to be fixed on one of my sites, this issue, which I’m having one one site, is worse with the 1.1.3 update:

Now, I get a whole string of similar messages when I log off of WordPress, and when I load the log-on page, I get this:

Notice: Undefined index: domains in /home/[username]/[site].com/wp-content/plugins/semalt/semalt.php on line 55

Warning: Cannot modify header information - headers already sent by (output started at /home/[username]/[site].com/wp-content/plugins/semalt/semalt.php:55) in /home/[username]/[site].com/wp-login.php on line 424

Warning: Cannot modify header information - headers already sent by (output started at /home/[username]/[site].com/wp-content/plugins/semalt/semalt.php:55) in /home/[username]/[site].com/wp-login.php on line 437

Warning: Cannot modify header information - headers already sent by (output started at /home/[username]/[site].com/wp-content/plugins/semalt/semalt.php:55) in /home/[username]/[site].com/wp-includes/pluggable.php on line 918

Warning: Cannot modify header information - headers already sent by (output started at /home/[username]/[site].com/wp-content/plugins/semalt/semalt.php:55) in /home/[username]/[site].com/wp-includes/pluggable.php on line 919

Warning: Cannot modify header information - headers already sent by (output started at /home/[username]/[site].com/wp-content/plugins/semalt/semalt.php:55) in /home/[username]/[site].com/wp-includes/pluggable.php on line 920
[Site Name]

Worse, when I attempt to log on, I get this:

ERROR: Cookies are blocked due to unexpected output. For help, please see this documentation or try the support forums.

And I cannot log in.

The main difference between the two sites is that this one uses the Twenty Thirteen theme.

Thanks,

David

But, switching to the Twenty Thirteen theme on my other site doesn’t create the problem. : (

Are they on the same server? Same versions of WordPress? Very odd

Yep, sitting side-by-side on the same server, and both on WP 4.1.1.

The issue above is just a PHP warning and, although present, should not affect anything else on the site. Have you any caching plugins installed? If so please purge all caches.

Nope, no caching plug-ins. I also tried deactivating the other plug-ins, but that didn’t work.

Also, just in case this info helps anyone, per our conversation over email, I deleted the blank line in semalt.php, and that didn’t work either.

Weird that it only happens with one of my websites similarly configured, and specifically with the Semalt Blocker update of around last Thursday.