这种无法订阅的情况，是怎么导致的？
由于免费获取API密钥无法订阅，多次尝试都未能订阅成功，所以注册了论坛账号。
那么既然论坛账号能注册成功，也能收到激活邮件，为什么获取API密钥时，无法订阅呢？
Translated: What’s causing this subscription failure? I tried subscribing multiple times after failing to obtain the free API key, so I registered a forum account. Since I was able to register a forum account and receive the activation email, why am I unable to subscribe when trying to obtain the API key?
Can you please check your spam folder? We use Brevo to send the free OCR API sign-up emails and"usually it works fine. If you can not find any email from OCR.space, please try to sign-up with another email. Then it should work.
Meanwhile you can use the (very limited) api key “helloworld” for some initial testing.
不是能不能收到邮件的问题，是根本就无法订阅的问题。订阅失败，我这边就没有成功订阅。是你的页面使我无法成功订阅
换了浏览器来订阅，还是无法订阅，我已经发现是你的页面的问题了。
Strange, I can not recreate the issue here- => Can you please post a screenshot or a short screen video of the issue?
即使把使用用途填写了，也是无法订阅，多次尝试都是无法订阅，换浏览器也是相同情况，换别的邮箱也是如此
Your screenshot is very helpful. I can see that the Captcha form is not loaded - so you can not fill it out. That is why the sign-up never works for you. → Can you try filling it out on a different machine, maybe a PC or Mac? Does it work then? You should see a Captcha like this:
就是在PC上操作的，无法订阅，换了浏览器也是无法订阅。有过同类情况发生吗？还是说你们的服务器对中国大陆的访问是有限制的？但是我注册论坛账号使用邮箱，确实能收到激活账号的邮件。那么只能说明是你的网页的问题，与我使用PC端或者手机端来订阅，并没有关系。