ERROR: SQLSTATE[08004] [1040] Too many connections<br />
<b>Notice</b>:  Undefined variable: db in <b>/var/www/html/db.php</b> on line <b>13</b><br />
<br />
<b>Fatal error</b>:  Uncaught Error: Call to a member function query() on null in /var/www/html/functions.php:3107
Stack trace:
#0 /var/www/html/index.php(5855): getWords()
#1 /var/www/html/vendor/slim/slim/Slim/Handlers/Strategies/RequestResponse.php(43): Closure-&gt;{closure}()
#2 /var/www/html/vendor/slim/slim/Slim/Routing/Route.php(381): Slim\Handlers\Strategies\RequestResponse-&gt;__invoke()
#3 /var/www/html/vendor/slim/slim/Slim/MiddlewareDispatcher.php(81): Slim\Routing\Route-&gt;handle()
#4 /var/www/html/vendor/slim/slim/Slim/MiddlewareDispatcher.php(81): Slim\MiddlewareDispatcher-&gt;handle()
#5 /var/www/html/vendor/slim/slim/Slim/Routing/Route.php(341): Slim\MiddlewareDispatcher-&gt;handle()
#6 /var/www/html/vendor/slim/slim/Slim/Routing/RouteRunner.php(84): Slim\Routing\Route-&gt;run()
#7 /var/www/html/vendor/slim/slim/Slim/Middleware/BodyParsingMiddleware.php(66): Slim\Routing\RouteRunner-&gt;handle()
#8 /var/www/html/vendor/slim/slim/Slim/MiddlewareDispatcher.php(140): Slim\Middleware\BodyParsingMiddleware-&gt;process()
#9 /var/www/html/ind in <b>/var/www/html/functions.php</b> on line <b>3107</b><br />
<br />
<b>Warning</b>:  Unknown: write failed: No space left on device (28) in <b>Unknown</b> on line <b>0</b><br />
<br />
<b>Warning</b>:  Unknown: Failed to write session data (files). Please verify that the current setting of session.save_path is correct (/var/lib/php/sessions) in <b>Unknown</b> on line <b>0</b><br />