I get a lot of notices on my site.
f.e.
Notice: Trying to get property of non-object in drupal_lookup_path() (line 77 of /home/srv/www/mysite/includes/path.inc).
Notice: Trying to get property of non-object in template_preprocess_html() (line 2497 of /home/srv/www/mysite/includes/theme.inc).
and many other.
And also warning:
Warning: Attempt to assign property of non-object in template_preprocess_html() (line 2497 of /home/srv/www/mysite/includes/theme.inc).
I don’t know how to fix this. Thanks to all for help.