CMS erros, say fatal error

[Donatello]

when I publish an article to save these messages is shown continuously,
What I can do?
Fatal error: Out of memory (allocated 26738688) (tried to allocate 30720 bytes) in /home/mysite/domains/mysite.com/public_html/foro/includes/class_core.php(4444) : eval()'d code on line 22
Fatal error: Out of memory (allocated 24641536) (tried to allocate 122880 bytes) in /home/mysite/domains/mysite.com/public_html/foro/includes/adminfunctions.php on line 3337
Fatal error: Out of memory (allocated 26738688) (tried to allocate 72 bytes) in /home/mysite/domains/mysite.com/public_html/foro/includes/class_template_parser.php on line 855
it appears three to four times and then I can normally access

Thank you.

[Lynne]

Those are server issues and you should talk to your host.