Stopped importing orders from magento

Just in case, I'll add:
Cron is working. Orders are coming from Opencart. Doesn't specifically handle auto-action on import from Magento.

An error occurs when trying to receive orders
SOAP-ERROR: Parsing WSDL: Couldn't load from 'https://ua.bycollar.com/api/soap/?wsdl' : failed to load external entity "https://ua.bycollar.com/api/soap /?wsdl"
Perhaps the problem is on the side of ua.bycollar.com

How about the second store? Too? Did the error appear on two different physical servers at the same time?
There are two integrations with magenta, and both do not work.
I tried to disable one by one in automation to check. No reaction.
What other options?

Damn, developers, you can't solve the problem of YOUR integration for a day already?
We are wasting time and money. What is the attitude towards customers who paid for boxing support.
You are not alone in the market. If you don't give a fuck, you'll lose more than just us. I will disperse the wave such that you never dreamed of.
You pay... You buy... And in response - ...fucking silence....
These are retail stores. I now transfer orders manually to managers, screenshots.
Do you think this is the norm?

Locally, the problem is not reproduced and orders are not downloaded from your server without problems, i.e. it's somewhere in the settings or domain or firewall, which do not allow requests.
The case is not easy, we look at similar situations with magento on the Internet and search for a solution. So far I haven't found a solution.
Ask the server administrators if any settings were changed at the exact time when the orders stopped loading.

In general, I figured out the problem.
I apologize for harsh statements, but not everyone writes services and counted on the experience of technical support.
In the end, after a day of googling and checking different options, everything turned out to be mysterious, but simple.
The SOAP component in PHP worked and did not work at the same time))
Those. she was active, but did not perform her functions.
Launched only after a complete update of all PHP extensions. In which extension the problem was, I don’t know, but as a result, the requests went.
I assume that the snag was in openSSL, but I will not say.
Thanks, the issue is closed.

As far as I can see, orders are being loaded, in particular, https://bycollar.crm-onebox.com/admin/customorder/prodazhi/76041/edit/ was created yesterday

Damn, I just now discovered that since 09/29/2021 I also have orders and customers are not being brought up ((https://our-store.com.ua/