And there is another line,
Strict Standards: call_user_func_array() expects parameter 1 to be a valid callback, non-static method PHPPC::register_admin_menu() should not be called statically in /wp-includes/plugin.php on line 505
Sounds like the paths of the template related files have changed or something on your server. Or those paths include some unknown characters. I’m not sure.
Try re-activating the templates via Dashboard -> Fetch Tweets -> Templates.
Regarding the strict standard warning, more information is needed to detect the cause. Post error log items shown before that warning if you can find.
I reinstall it, and using the lastest version; there are no this problems. But I can’t find the template ID anymore. It’s changed by url. And I can’t use it.
The template IDs will be a relative path of the template directory like ./wp-content/plugins/fetch-tweets/template/plain in v2.4.x. The format of them have changed from the md5 hash of the directory full path.
If you have updated the plugin from v2.3.x, the template IDs of the old format can still be used. However, if you moved the site or the template directory path is different, your template will have a different ID than before.
