troubleshooting

Fatal error: Uncaught exception 'PDOException' with message 'SQLSTATE[HY000]: General error: 2006 MySQL server has gone away' in /Applications/MAMP/htdocs/phsc.dev/docroot/includes/database/database.inc:2171 Stack trace: #0 /Applications/MAMP/htdocs/phsc.dev/docroot/includes/database/database.inc(2171): PDOStatement->execute(Array) #1 /Applications/MAMP/htdocs/phsc.dev/docroot/includes/database/database.inc(683): DatabaseStatementBase->execute(Array, Array) #2 /Applications/MAMP/htdocs/phsc.dev/docroot/includes/database/database.inc(2350): DatabaseConnection->query('SELECT expire, ...', Array, Array) #3 /Applications/MAMP/htdocs/phsc.dev/docroot/includes/lock.inc(167): db_query('SELECT expire, ...', Array) #4 /Applications/MAMP/htdocs/phsc.dev/docroot/includes/lock.inc(146): lock_may_be_available('theme_registry:...') #5 /Applications/MAMP/htdocs/phsc.dev/docroot/includes/theme.inc(449): lock_acquire('theme_registry:...') #6 /Applications/MAMP/htdocs/phsc.dev/docroot/includes/bootstrap.inc(455): ThemeRegistry->set(Array) in /Applications/MAMP/htdocs/phsc.dev/docroot/includes/database/database.inc on line 2171