I got this error with version 1.7.1 

e:ExceptionMessage:SQLSTATE[42000]: Syntax error or access violation: 1071 Specified key was too long; max key length is 1000 bytesFile:/Library/Server/Web/Data/Sites/www.maczoom.com/ow_core/database.phpLine:707Trace:#0 /Library/Server/Web/Data/Sites/www.maczoom.com/ow_core/database.php(707): PDOStatement->execute() #1 /Library/Server/Web/Data/Sites/www.maczoom.com/ow_core/database.php(435): OW_Database->execute('CREATE TABLE IF...', NULL) #2 /Library/Server/Web/Data/Sites/www.maczoom.com/ow_plugins/ynnews/install.php(111): OW_Database->query('CREATE TABLE IF...') #3 /Library/Server/Web/Data/Sites//...l/plugin_service.php(558): include_once('/Library/Server...') #4 /Library/Server/Web/Data/Sites//...trollers/plugins.php(648): BOL_PluginService->install('ynnews') #5 [internal function]: ADMIN_CTRL_Plugins->install(Array) #6 /Library/Server/Web/Data/Sites/www.maczoom.com/ow_core/request_handler.php(263): call_user_func_array(Array, Array) #7 /Library/Server/Web/Data/Sites/www.maczoom.com/ow_core/application.php(327): OW_RequestHandler->dispatch() #8 /Library/Server/Web/Data/Sites/www.maczoom.com/index.php(128): OW_Application->handleRequest() #9 {main}