Error message

• Warning: file_put_contents(temporary://filesfS7rL) [function.file-put-contents]: failed to open stream: "DrupalTemporaryStreamWrapper::stream_open" call failed in file_unmanaged_save_data() (line 1859 of /home/gaeet/public_html/includes/file.inc).
• The file could not be created.
• Notice: Undefined property: stdClass::$uri in file_save() (line 573 of /home/gaeet/public_html/includes/file.inc).
• Notice: Undefined property: stdClass::$uri in apps_retrieve_app_image() (line 270 of /home/gaeet/public_html/profiles/openpublic/modules/contrib/apps/apps.manifest.inc).
• Warning: file_put_contents(temporary://fileigLDZB) [function.file-put-contents]: failed to open stream: "DrupalTemporaryStreamWrapper::stream_open" call failed in file_unmanaged_save_data() (line 1859 of /home/gaeet/public_html/includes/file.inc).
• The file could not be created.
• Notice: Undefined property: stdClass::$uri in file_save() (line 573 of /home/gaeet/public_html/includes/file.inc).
• Notice: Undefined property: stdClass::$uri in apps_retrieve_app_image() (line 270 of /home/gaeet/public_html/profiles/openpublic/modules/contrib/apps/apps.manifest.inc).
• Warning: file_put_contents(temporary://fileLwYYmt) [function.file-put-contents]: failed to open stream: "DrupalTemporaryStreamWrapper::stream_open" call failed in file_unmanaged_save_data() (line 1859 of /home/gaeet/public_html/includes/file.inc).
• The file could not be created.
• Notice: Undefined property: stdClass::$uri in file_save() (line 573 of /home/gaeet/public_html/includes/file.inc).
• Notice: Undefined property: stdClass::$uri in apps_retrieve_app_image() (line 270 of /home/gaeet/public_html/profiles/openpublic/modules/contrib/apps/apps.manifest.inc).
• Warning: file_put_contents(temporary://fileKMaHLl) [function.file-put-contents]: failed to open stream: "DrupalTemporaryStreamWrapper::stream_open" call failed in file_unmanaged_save_data() (line 1859 of /home/gaeet/public_html/includes/file.inc).
• The file could not be created.
• Notice: Undefined property: stdClass::$uri in file_save() (line 573 of /home/gaeet/public_html/includes/file.inc).
• Notice: Undefined property: stdClass::$uri in apps_retrieve_app_image() (line 270 of /home/gaeet/public_html/profiles/openpublic/modules/contrib/apps/apps.manifest.inc).
• Warning: file_put_contents(temporary://filenCDkTe) [function.file-put-contents]: failed to open stream: "DrupalTemporaryStreamWrapper::stream_open" call failed in file_unmanaged_save_data() (line 1859 of /home/gaeet/public_html/includes/file.inc).
• The file could not be created.
• Notice: Undefined property: stdClass::$uri in file_save() (line 573 of /home/gaeet/public_html/includes/file.inc).
• Notice: Undefined property: stdClass::$uri in apps_retrieve_app_image() (line 270 of /home/gaeet/public_html/profiles/openpublic/modules/contrib/apps/apps.manifest.inc).
• Warning: file_put_contents(temporary://fileds0hO8) [function.file-put-contents]: failed to open stream: "DrupalTemporaryStreamWrapper::stream_open" call failed in file_unmanaged_save_data() (line 1859 of /home/gaeet/public_html/includes/file.inc).
• The file could not be created.
• Notice: Undefined property: stdClass::$uri in file_save() (line 573 of /home/gaeet/public_html/includes/file.inc).
• Notice: Undefined property: stdClass::$uri in apps_retrieve_app_image() (line 270 of /home/gaeet/public_html/profiles/openpublic/modules/contrib/apps/apps.manifest.inc).
• Warning: file_put_contents(temporary://fileQ7TPi3) [function.file-put-contents]: failed to open stream: "DrupalTemporaryStreamWrapper::stream_open" call failed in file_unmanaged_save_data() (line 1859 of /home/gaeet/public_html/includes/file.inc).
• The file could not be created.
• Notice: Undefined property: stdClass::$uri in file_save() (line 573 of /home/gaeet/public_html/includes/file.inc).
• Notice: Undefined property: stdClass::$uri in apps_retrieve_app_image() (line 270 of /home/gaeet/public_html/profiles/openpublic/modules/contrib/apps/apps.manifest.inc).
• Warning: file_put_contents(temporary://filefqLfBY) [function.file-put-contents]: failed to open stream: "DrupalTemporaryStreamWrapper::stream_open" call failed in file_unmanaged_save_data() (line 1859 of /home/gaeet/public_html/includes/file.inc).
• The file could not be created.
• Notice: Undefined property: stdClass::$uri in file_save() (line 573 of /home/gaeet/public_html/includes/file.inc).
• Notice: Undefined property: stdClass::$uri in apps_retrieve_app_image() (line 270 of /home/gaeet/public_html/profiles/openpublic/modules/contrib/apps/apps.manifest.inc).
• Warning: file_put_contents(temporary://filerz5NBU) [function.file-put-contents]: failed to open stream: "DrupalTemporaryStreamWrapper::stream_open" call failed in file_unmanaged_save_data() (line 1859 of /home/gaeet/public_html/includes/file.inc).
• The file could not be created.
• Notice: Undefined property: stdClass::$uri in file_save() (line 573 of /home/gaeet/public_html/includes/file.inc).
• Notice: Undefined property: stdClass::$uri in apps_retrieve_app_image() (line 270 of /home/gaeet/public_html/profiles/openpublic/modules/contrib/apps/apps.manifest.inc).
• Warning: file_put_contents(temporary://fileANHd7Q) [function.file-put-contents]: failed to open stream: "DrupalTemporaryStreamWrapper::stream_open" call failed in file_unmanaged_save_data() (line 1859 of /home/gaeet/public_html/includes/file.inc).
• The file could not be created.
• Notice: Undefined property: stdClass::$uri in file_save() (line 573 of /home/gaeet/public_html/includes/file.inc).
• Warning: Cannot modify header information - headers already sent by (output started at /home/gaeet/public_html/includes/common.inc:2567) in drupal_send_headers() (line 1018 of /home/gaeet/public_html/includes/bootstrap.inc).
• PDOException: SQLSTATE[23000]: Integrity constraint violation: 1062 Duplicate entry '' for key 'uri': INSERT INTO {file_managed} (filesize, timestamp) VALUES (:db_insert_placeholder_0, :db_insert_placeholder_1); Array ( [:db_insert_placeholder_0] => 0 [:db_insert_placeholder_1] => 1371641088 ) in drupal_write_record() (line 6861 of /home/gaeet/public_html/includes/common.inc).