"Box rates mean that OneBox will be installed exclusively on the client's server, and the code will be open. When OneBox is placed on the client's servers, the OneBox company removes any responsibility for the preservation and security of the data. The client independently provides a backup copy or orders this service separately from third-party companies or system integrators. 1 second after OneBox is installed on the client's server - OneBox company disclaims any responsibility for the performance of the system or any part of it, and also does not guarantee system updates in the future."
The company could not disable your box on your server, which is your responsibility
+ you have an outdated version of the system that is not supported and this has been repeatedly described - here is an example
https://1b.app/ua/forum/onebox-official-news/15984-prinuditelnoe-obnovlenie-obla... -os/