GuzzleHttp\Exception\ServerException: Server error: `GET https://api.clerk.io/v2//recommendations/category/popular?key=Vdx17R6kbskxBO05OWpT8luTtqWBwDv5&category=349&limit=72&offset=0&attributes=%5B%22id%22%2C%22name%22%2C%22brand%22%2C%22selling_points%22%2C%22on_sale%22%2C%22price%22%2C%22list_price%22%2C%22variant_count%22%2C%22image%22%2C%22image_suffix%22%2C%22description%22%2C%22url_suffix%22%2C%22create_date%22%2C%22price_low%22%2C%22price_high%22%2C%22review_rating%22%2C%22review_count%22%5D&facets=%5B%22brand%22%5D&filter=&visitor=58f22e40fb47afd9843e37f6c47adc8f&labels=%5B%22Category%20%5C%2F%20Page%22%5D` resulted in a `503 Service Unavailable: Back-end server is at capacity` response in /var/www/html/vendor/guzzlehttp/guzzle/src/Exception/RequestException.php:113
Stack trace:
#0 /var/www/html/vendor/guzzlehttp/guzzle/src/Middleware.php(66): GuzzleHttp\Exception\RequestException::create(Object(GuzzleHttp\Psr7\Request), Object(GuzzleHttp\Psr7\Response))
#1 /var/www/html/vendor/guzzlehttp/promises/src/Promise.php(203): GuzzleHttp\Middleware::GuzzleHttp\{closure}(Object(GuzzleHttp\Psr7\Response))
#2 /var/www/html/vendor/guzzlehttp/promises/src/Promise.php(156): GuzzleHttp\Promise\Promise::callHandler(1, Object(GuzzleHttp\Psr7\Response), Array)
#3 /var/www/html/vendor/guzzlehttp/promises/src/TaskQueue.php(47): GuzzleHttp\Promise\Promise::GuzzleHttp\Promise\{closure}()
#4 /var/www/html/vendor/guzzlehttp/promises/src/Promise.php(246): GuzzleHttp\Promise\TaskQueue->run(true)
#5 /var/www/html/vendor/guzzlehttp/promises/src/Promise.php(223): GuzzleHttp\Promise\Promise->invokeWaitFn()
#6 /var/www/html/vendor/guzzlehttp/promises/src/Promise.php(267): GuzzleHttp\Promise\Promise->waitIfPending()
#7 /var/www/html/vendor/guzzlehttp/promises/src/Promise.php(225): GuzzleHttp\Promise\Promise->invokeWaitList()
#8 /var/www/html/vendor/guzzlehttp/promises/src/Promise.php(62): GuzzleHttp\Promise\Promise->waitIfPending()
#9 /var/www/html/vendor/guzzlehttp/guzzle/src/Client.php(131): GuzzleHttp\Promise\Promise->wait()
#10 /var/www/html/classes/Watski/ClerkHelper.php(528): GuzzleHttp\Client->request('GET', 'https://api.cle...', Array)
#11 /var/www/html/model/section_clerk.php(68): ClerkHelper->Category(349, 72, 0)
#12 /var/www/html/model/section_clerk.php(8): Section_Renderer->render(''11Tpo'')
#13 /var/www/html/index.php(694): render_section_clerk(''11Tpo'')
#14 {main}<br />
<b>Notice</b>:  Undefined variable: res in <b>/var/www/html/classes/Watski/ClerkHelper.php</b> on line <b>535</b><br />
<br />
<b>Fatal error</b>:  Uncaught Error: Call to a member function getBody() on null in /var/www/html/classes/Watski/ClerkHelper.php:535
Stack trace:
#0 /var/www/html/model/section_clerk.php(68): ClerkHelper-&gt;Category(349, 72, 0)
#1 /var/www/html/model/section_clerk.php(8): Section_Renderer-&gt;render(''11Tpo'')
#2 /var/www/html/index.php(694): render_section_clerk(''11Tpo'')
#3 {main}
  thrown in <b>/var/www/html/classes/Watski/ClerkHelper.php</b> on line <b>535</b><br />