Errores tras instalación ¿Como los soluciono?

Gracias por adelantado

warning: fopen() [function.fopen]: SAFE MODE Restriction in effect. The script whose uid is 759 is not allowed to access /home/anhida/domains/anhida.org/public_html/drupal/sites/default/files/tmp/fileYqWbWV owned by uid 100 in /home/anhida/domains/anhida.org/public_html/drupal/includes/file.inc on line 764.
warning: fopen(/home/anhida/domains/anhida.org/public_html/drupal/sites/default/files/tmp/fileYqWbWV) [function.fopen]: failed to open stream: Success in /home/anhida/domains/anhida.org/public_html/drupal/includes/file.inc on line 764.
No se pudo crear el archivo.
warning: fopen() [function.fopen]: SAFE MODE Restriction in effect. The script whose uid is 759 is not allowed to access /home/anhida/domains/anhida.org/public_html/drupal/sites/default/files/tmp/filem2c5Dc owned by uid 100 in /home/anhida/domains/anhida.org/public_html/drupal/includes/file.inc on line 764.
warning: fopen(/home/anhida/domains/anhida.org/public_html/drupal/sites/default/files/tmp/filem2c5Dc) [function.fopen]: failed to open stream: Success in /home/anhida/domains/anhida.org/public_html/drupal/includes/file.inc on line 764.
No se pudo crear el archivo.
warning: fopen() [function.fopen]: SAFE MODE Restriction in effect. The script whose uid is 759 is not allowed to access /home/anhida/domains/anhida.org/public_html/drupal/sites/default/files/tmp owned by uid 100 in /home/anhida/domains/anhida.org/public_html/drupal/includes/file.inc on line 129.
warning: fopen(sites/default/files/tmp/.htaccess) [function.fopen]: failed to open stream: Success in /home/anhida/domains/anhida.org/public_html/drupal/includes/file.inc on line 129.