Sometimes, documents cannot be opened for viewing. In this case, you need to check for the following possible issues:
Internet connection and access to Bitrix24 account.
License key activation status;
Whether you have access to files /bitrix/tools/transformer_result.php inside the folder /upload/ via Internet under unauthenticated user;
Domain is correct inside File converter module settings.
Bitrix24 account performance using protected HTTPS protocol;
Correct SSL-certificate using online service. In this case, it is critical for the full certificate chain to be in place. Browser can additionally configure it, and PHP - does not.
Access is available for connecting to the Bitrix24 account from the conversion server transformer-de.bitrix.info, IP-address: 35.158.198.235.
Parameter
\Bitrix\Main\Config\Option::set('transformer', 'transformer_controller_url', 'https://transformer-de.bitrix.info/json/add_queue.php') - has been specified;
If unavailable, then add the value : https://transformer-de.bitrix.info/json/add_queue.php inside the field File convert API URL at Settings > System settings > Module settings > File converter path.
Additionally:
Inside the
Kernel module settings
enable the parameters Transliterate filenames: and parameter
Fast file download using nginx
To avoid Nginx or cloud storage settings affecting the file download at the virtual appliance.
,
The remaining check must be done inside the table b_transformer_command for STATUS and ERROR values. On STATUS error as 1000, and ERROR field can contain error text detailing the reason.
Note: after implementing the updates, verify that the available new documents can be opened for viewing - those that previously weren't converted yet. Current files will open correctly after 24-hour period after the implemented updates.