Error message

• Warning: preg_replace(): Compilation failed: invalid UTF-8 string at offset 5207 in search_excerpt() (line 1256 of /srv/users/drupaldude/apps/ccl/public/modules/search/search.module).
• Warning: preg_replace(): Compilation failed: invalid UTF-8 string at offset 5207 in search_excerpt() (line 1256 of /srv/users/drupaldude/apps/ccl/public/modules/search/search.module).
• Warning: preg_replace(): Compilation failed: invalid UTF-8 string at offset 5207 in search_excerpt() (line 1256 of /srv/users/drupaldude/apps/ccl/public/modules/search/search.module).
• Warning: preg_replace(): Compilation failed: invalid UTF-8 string at offset 5207 in search_excerpt() (line 1256 of /srv/users/drupaldude/apps/ccl/public/modules/search/search.module).
• Warning: preg_replace(): Compilation failed: invalid UTF-8 string at offset 5207 in search_excerpt() (line 1256 of /srv/users/drupaldude/apps/ccl/public/modules/search/search.module).
• Warning: preg_replace(): Compilation failed: invalid UTF-8 string at offset 5207 in search_excerpt() (line 1256 of /srv/users/drupaldude/apps/ccl/public/modules/search/search.module).
• Warning: preg_replace(): Compilation failed: invalid UTF-8 string at offset 5207 in search_excerpt() (line 1256 of /srv/users/drupaldude/apps/ccl/public/modules/search/search.module).
• Warning: preg_replace(): Compilation failed: invalid UTF-8 string at offset 5207 in search_excerpt() (line 1256 of /srv/users/drupaldude/apps/ccl/public/modules/search/search.module).
• Warning: preg_replace(): Compilation failed: invalid UTF-8 string at offset 5207 in search_excerpt() (line 1256 of /srv/users/drupaldude/apps/ccl/public/modules/search/search.module).
• Warning: preg_replace(): Compilation failed: invalid UTF-8 string at offset 5207 in search_excerpt() (line 1256 of /srv/users/drupaldude/apps/ccl/public/modules/search/search.module).
• Warning: preg_replace(): Compilation failed: invalid UTF-8 string at offset 5207 in search_excerpt() (line 1256 of /srv/users/drupaldude/apps/ccl/public/modules/search/search.module).
• Warning: preg_replace(): Compilation failed: invalid UTF-8 string at offset 5207 in search_excerpt() (line 1256 of /srv/users/drupaldude/apps/ccl/public/modules/search/search.module).