Debug :Disabling PurePerms

[servantthought]

[Server] Server thread/INFO Enabling PurePerms v1.4.1-4
19.03 07:56:32 [Server] Server thread/NOTICE Set data provider to YAMLv1.
19.03 07:56:32 [Server] Server thread/CRITICAL ErrorException: "Array to string conversion" (EXCEPTION) in "PurePerms/src/_64FF00/PurePerms/PPGroup" at line 371
19.03 07:56:32 [Server] Server thread/DEBUG #0 (): pocketmine\error_handler(integer 8, string Array to string conversion, string /plugins/PurePerms/src/_64FF00/PurePerms/PPGroup.php, integer 371, array Array())
19.03 07:56:32 [Server] Server thread/DEBUG #1 PurePerms/src/_64FF00/PurePerms/PPGroup(371): array_unique(array Array())
19.03 07:56:32 [Server] Server thread/DEBUG #2 PurePerms/src/_64FF00/PurePerms/PurePerms(668): _64FF00\PurePerms\PPGroup->sortPermissions()
19.03 07:56:32 [Server] Server thread/DEBUG #3 PurePerms/src/_64FF00/PurePerms/PurePerms(701): _64FF00\PurePerms\PurePerms->sortGroupData()
19.03 07:56:32 [Server] Server thread/DEBUG #4 PurePerms/src/_64FF00/PurePerms/PurePerms(233): _64FF00\PurePerms\PurePerms->updateGroups()
19.03 07:56:32 [Server] Server thread/DEBUG #5 PurePerms/src/_64FF00/PurePerms/PurePerms(113): _64FF00\PurePerms\PurePerms->setProvider()
19.03 07:56:32 [Server] Server thread/DEBUG #6 src/pocketmine/plugin/PluginBase(90): _64FF00\PurePerms\PurePerms->onEnable()
19.03 07:56:32 [Server] Server thread/DEBUG #7 PocketMine-DevTools.phar/src/FolderPluginLoader/FolderPluginLoader(127): pocketmine\plugin\PluginBase->setEnabled(boolean 1)
19.03 07:56:32 [Server] Server thread/DEBUG #8 src/pocketmine/plugin/PluginManager(572): FolderPluginLoader\FolderPluginLoader->enablePlugin(_64FF00\PurePerms\PurePerms object)
19.03 07:56:32 [Server] Server thread/DEBUG #9 src/pocketmine/Server(1962): pocketmine\plugin\PluginManager->enablePlugin(_64FF00\PurePerms\PurePerms object)
19.03 07:56:32 [Server] Server thread/DEBUG #10 src/pocketmine/Server(1948): pocketmine\Server->enablePlugin(_64FF00\PurePerms\PurePerms object)
19.03 07:56:32 [Server] Server thread/DEBUG #11 src/pocketmine/Server(1742): pocketmine\Server->enablePlugins(integer 1)
19.03 07:56:32 [Server] Server thread/DEBUG #12 src/pocketmine/PocketMine(556): pocketmine\Server->__construct(BaseClassLoader object, pocketmine\utils\MainLogger object, string /, string /plugins/)
19.03 07:56:32 [Server] Server thread/DEBUG #13 /pmmp_698_1.2.10.phar(1): require(string phar:///pmmp_698_1.2.10.phar/src/pocketmine/PocketMine.php)
19.03 07:56:32 [Server] Server thread/INFO Disabling PurePerms v1.4.1-4 19.03 07:56:32 

[Awzaw]

Please post your groups.yml