Error messages from vbseo

I got a few of these error messages over the weekend:

[web1][29-Oct-2010 16:24:21] PHP Warning: file_exists() [<a
href='function.file-exists'>function.file-exists</a>]: Unable to find the
wrapper &quot;login.phhttp&quot; - did you forget to enable it when you
configured PHP? in /home/ddc/public_html/forum/vbseo.php on line 59
[web1][29-Oct-2010 16:24:21] PHP Warning: file_exists() [<a
href='function.file-exists'>function.file-exists</a>]: Unable to find the
wrapper &quot;login.phhttp&quot; - did you forget to enable it when you
configured PHP? in /home/ddc/public_html/forum/vbseo.php on line 62
[web1][29-Oct-2010 16:24:21] PHP Warning: file_exists() [<a
href='function.file-exists'>function.file-exists</a>]: Unable to find the
wrapper &quot;login.phhttp&quot; - did you forget to enable it when you
configured PHP? in
/home/ddc/public_html/forum/vbseo/includes/functions_vbseo_url.php on line
202
[web1][29-Oct-2010 16:24:21] PHP Warning: file_exists() [<a
href='function.file-exists'>function.file-exists</a>]: Unable to find the
wrapper &quot;login.phhttp&quot; - did you forget to enable it when you
configured PHP? in
/home/ddc/public_html/forum/vbseo/includes/functions_vbseo_url.php on line
202
[web1][29-Oct-2010 16:24:21] PHP Warning: file_exists() [<a
href='function.file-exists'>function.file-exists</a>]: Unable to find the
wrapper &quot;login.phhttp&quot; - did you forget to enable it when you
configured PHP? in
/home/ddc/public_html/forum/vbseo/includes/functions_vbseo_url.php on line
202
[web1][29-Oct-2010 16:24:21] PHP Warning: file_exists() [<a
href='function.file-exists'>function.file-exists</a>]: Unable to find the
wrapper &quot;login.phhttp&quot; - did you forget to enable it when you
configured PHP? in /home/ddc/public_html/forum/vbseo.php on line 1249

I'm not sure what's causing them, but it could be worth looking into.

Have you changed or rebuilt your php install recently? It may be related to open SSL support or CURL