Can't test Drupal 7 projects

hmm strange the following happened on your submission

You are about to DROP all tables in your 'dgx75' database. Do you want to continue? (y/n): y
Starting Drupal installation. This takes a while. Consider using the        [ok]
--notify global option.
exception 'Exception' with message 'Resolve all issues below to          [error]
continue the installation. For help configuring your database server,
see the <a
href="http://drupal.org/getting-started/install">installation
handbook</a>, or contact your hosting provider.<p
class="error">Failed to <strong>CREATE</strong> a test table on your
database server with the command <em>CREATE TABLE
{drupal_install_test} (id int NULL)</em>. The server reports the
following message: <em>SQLSTATE[HY000]: General error: 3 Error
writing file &#039;./dgx75/drupal_install_test.frm&#039; (Errcode:
28)</em>.<p>Are you sure the configured username has the necessary
permissions to create tables in the database?</p></p>' in
/home/dgx75/www/includes/install.core.inc:415
Stack trace:
#0 /home/dgx75/www/includes/install.core.inc(339):
install_run_task(Array, Array)
#1 /home/dgx75/www/includes/install.core.inc(77):
install_run_tasks(Array)
#2 /spawner/drush/master/includes/drush.inc(720):
install_drupal(Array)
#3 /spawner/drush/master/includes/drush.inc(706):
drush_call_user_func_array('install_drupal', Array)
#4 /spawner/drush/master/commands/core/drupal/site_install_7.inc(80):
drush_op('install_drupal', Array)
#5 /spawner/drush/master/commands/core/site_install.drush.inc(289):
drush_core_site_install_version(NULL, Array)
#6 [internal function]: drush_core_site_install()
#7 /spawner/drush/master/includes/command.inc(364):
call_user_func_array('drush_core_site...', Array)
#8 /spawner/drush/master/includes/command.inc(215):
_drush_invoke_hooks(Array, Array)
#9 [internal function]: drush_command()
#10 /spawner/drush/master/includes/command.inc(183):
call_user_func_array('drush_command', Array)
#11 /spawner/drush/master/lib/Drush/Boot/BaseBoot.php(65):
drush_dispatch(Array)
#12 /spawner/drush/master/includes/preflight.inc(64):
Drush\Boot\BaseBoot->bootstrap_and_dispatch()
#13 /spawner/drush/master/drush.php(12): drush_main()
#14 {main}

Failed to CREATE a test table on your
database server with the command CREATE TABLE
{drupal_install_test} (id int NULL). The server reports the
following message: SQLSTATE[HY000]: General error: 3 Error
writing file './dgx75/drupal_install_test.frm' (Errcode:
28)

i just tried it again and it worked, not sure what caused this

the only other mention of this issue I could find on the internet is that this can be cause by having no more space on disk.
as simplytest.me's databases are completely in RAM it might be that that ran out for a moment but looking at newrelic i cannot see a high memory usage either...

might have been some temporary db issue, let's see if this happens again... thanks for reporting though!

The error is still happening. Tried all browsers and restarted machine several times.
error: 'An error occurred while installing the environment'
Tried D7.41 thru 7.54 Drupal Core

aww sorry! i'll look into it

couldn't identify any specific issues.. but there seemed to be a lot of leaked memory reserved. it had an uptime of a year, so I guess that's not too bad

i took the problematic server down and resetted it to a previous state, so I hope that fixed this issue

I was having these errors yesterday too, but things seem to be working as normal now.

As we have switched frameworks, I am closing this issue. Thanks everyone!