Trying to create a new training app -does not work

Application ID: null
Error UID: 3659AB15-C067-4AD7-8B08-1C185C4CE354

Backendless encountered an error while handling the request. An internal trouble ticket with ID bl-server:3659AB15-C067-4AD7-8B08-1C185C4CE354 has been created and we will be investigating the issue.
Error during request Response code: 502Response body '<html>
<head><title>502 Bad Gateway</title></head>
<body>
<center><h1>502 Bad Gateway</h1></center>
<hr><center>nginx</center>
</body>
</html>
'. Response headers: java.net.http.HttpHeaders@f5efab78 { {connection=[keep-alive], content-length=[150], content-type=[text/html; charset=utf-8], date=[Tue, 10 Jun 2025 15:32:00 GMT], server=[nginx], strict-transport-security=[max-age=31536000; preload]} }
java.lang.RuntimeException: Error during request Response code: 502Response body '<html>
<head><title>502 Bad Gateway</title></head>
<body>
<center><h1>502 Bad Gateway</h1></center>
<hr><center>nginx</center>
</body>
</html>
'. Response headers: java.net.http.HttpHeaders@f5efab78 { {connection=[keep-alive], content-length=[150], content-type=[text/html; charset=utf-8], date=[Tue, 10 Jun 2025 15:32:00 GMT], server=[nginx], strict-transport-security=[max-age=31536000; preload]} }
	at com.backendless.httpclient.HttpClientHelper.handleResponse(HttpClientHelper.java:86)
	at java.base/java.util.concurrent.CompletableFuture$UniApply.tryFire(CompletableFuture.java:646)
	at java.base/java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:510)
	at java.base/java.util.concurrent.CompletableFuture.postFire(CompletableFuture.java:614)
	at java.base/java.util.concurrent.CompletableFuture$UniWhenComplete.tryFire(CompletableFuture.java:844)
	at java.base/java.util.concurrent.CompletableFuture$Completion.exec(CompletableFuture.java:483)
	at java.base/java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:373)
	at java.base/java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1182)
	at java.base/java.util.concurrent.ForkJoinPool.scan(ForkJoinPool.java:1655)
	at java.base/java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1622)
	at java.base/java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:165)

Problem description

Describe what you did in console that led to the error. Please provide a description of what actually happens. Be descriptive: “it doesn’t work” does not describe what the behavior actually is. This will help us with reproducing the problem.

Steps to reproduce

Please describe steps to reproduce starting from the first action.

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