Fatal error: Uncaught GuzzleHttp\Exception\ServerException: Server error: `POST https://manage-api.progressteaching.com/pamSchool/v1/instance-env-vars/by-url` resulted in a `503 Service Temporarily Unavailable` response:
<html>
<head><title>503 Service Temporarily Unavailable</title></head>
<body>
<center><h1>503 Service Temporarily Una (truncated...)
in /app/pam/protected/vendor/guzzlehttp/guzzle/src/Exception/RequestException.php:113
Stack trace:
#0 /app/pam/protected/vendor/guzzlehttp/guzzle/src/Middleware.php(65): GuzzleHttp\Exception\RequestException::create(Object(GuzzleHttp\Psr7\Request), Object(GuzzleHttp\Psr7\Response))
#1 /app/pam/protected/vendor/guzzlehttp/promises/src/Promise.php(204): GuzzleHttp\Middleware::GuzzleHttp\{closure}(Object(GuzzleHttp\Psr7\Response))
#2 /app/pam/protected/vendor/guzzlehttp/promises/src/Promise.php(153): GuzzleHttp\Promise\Promise::callHandler(1, Object(GuzzleHttp\Psr7\Response), NULL)
#3 /app/pam/protected/vendor/guzzlehttp/promises/src/TaskQueue.php(48): GuzzleHttp\Promise\Promise::GuzzleHttp\Promise\{closure}()
#4 /app/pam/protected/vendor/guzzlehttp/promises/src/Promise.php(248): GuzzleHttp\Promise\TaskQueue->run(true)
#5 /app/pam/protected/vendor/guzzlehttp/promises/src/Promise.php(224): GuzzleHttp\Promise\Promise->invokeWaitFn()
#6 /app/pam/protected/vendor/guzzlehttp/promises/src/Promise.php(269): GuzzleHttp\Promise\Promise->waitIfPending()
#7 /app/pam/protected/vendor/guzzlehttp/promises/src/Promise.php(226): GuzzleHttp\Promise\Promise->invokeWaitList()
#8 /app/pam/protected/vendor/guzzlehttp/promises/src/Promise.php(62): GuzzleHttp\Promise\Promise->waitIfPending()
#9 /app/pam/protected/vendor/guzzlehttp/guzzle/src/Client.php(182): GuzzleHttp\Promise\Promise->wait()
#10 /app/packages/env-loader/src/RemoteEnv.php(200): GuzzleHttp\Client->request('POST', 'pamSchool/v1/in...', Array)
#11 /app/packages/env-loader/src/RemoteEnv.php(152): Pam\EnvLoader\RemoteEnv->fetch()
#12 /app/pam/protected/vendor/symfony/cache/Adapter/ChainAdapter.php(99): Pam\EnvLoader\RemoteEnv->Pam\EnvLoader\{closure}(Object(Symfony\Component\Cache\CacheItem), true)
#13 /app/pam/protected/vendor/symfony/cache/LockRegistry.php(113): Symfony\Component\Cache\Adapter\ChainAdapter::Symfony\Component\Cache\Adapter\{closure}(Object(Symfony\Component\Cache\CacheItem), true)
#14 /app/pam/protected/vendor/symfony/cache/Traits/ContractsTrait.php(100): Symfony\Component\Cache\LockRegistry::compute(Object(Closure), Object(Symfony\Component\Cache\CacheItem), true, Object(Symfony\Component\Cache\Adapter\FilesystemAdapter), Object(Closure), NULL)
#15 /app/pam/protected/vendor/symfony/cache-contracts/CacheTrait.php(72): Symfony\Component\Cache\Adapter\AbstractAdapter->Symfony\Component\Cache\Traits\{closure}(Object(Symfony\Component\Cache\CacheItem), true)
#16 /app/pam/protected/vendor/symfony/cache/Traits/ContractsTrait.php(107): Symfony\Component\Cache\Adapter\AbstractAdapter->contractsGet(Object(Symfony\Component\Cache\Adapter\FilesystemAdapter), 'env-vars', Object(Closure), 1.0, Array, NULL)
#17 /app/pam/protected/vendor/symfony/cache-contracts/CacheTrait.php(35): Symfony\Component\Cache\Adapter\AbstractAdapter->doGet(Object(Symfony\Component\Cache\Adapter\FilesystemAdapter), 'env-vars', Object(Closure), 1.0, Array)
#18 /app/pam/protected/vendor/symfony/cache/Adapter/ChainAdapter.php(114): Symfony\Component\Cache\Adapter\AbstractAdapter->get('env-vars', Object(Closure), 1.0, Array)
#19 /app/pam/protected/vendor/symfony/cache/Adapter/ChainAdapter.php(126): Symfony\Component\Cache\Adapter\ChainAdapter->Symfony\Component\Cache\Adapter\{closure}()
#20 /app/packages/env-loader/src/RemoteEnv.php(156): Symfony\Component\Cache\Adapter\ChainAdapter->get('env-vars', Object(Closure), 1.0)
#21 /app/packages/env-loader/src/Env.php(201): Pam\EnvLoader\RemoteEnv->getVariables()
#22 /app/packages/env-loader/src/Env.php(140): Pam\EnvLoader\Env::loadRemoteEnvVars(Object(Symfony\Component\Dotenv\Dotenv), 'prod')
#23 /app/packages/env-loader/src/Env.php(36): Pam\EnvLoader\Env::init()
#24 /app/pam/protected/config/_bootstrap.php(29): Pam\EnvLoader\Env::get('APP_CODE')
#25 /app/pam/protected/config/main.php(17): require('/app/pam/protec...')
#26 /app/pam/index.php(10): require('/app/pam/protec...')
#27 {main}
thrown in /app/pam/protected/vendor/guzzlehttp/guzzle/src/Exception/RequestException.php on line 113