如题，调用findConversationsWithCallBack:返回这个错误，不知道如何解决，求助。。

版本号：
'AVOSCloud', '~> 3.2.7'
'AVOSCloudIM', '~> 3.2.7'

网络环境：
WiFi

相关代码：

- (void)findConversationWithUserIds:(NSArray *)userIdsArray type:(QHConversationType)type callBackBlock:(QHConversationBlock)conversationBlock
{
    WS(weakSelf)
    AVIMConversationQuery *query = [self.imClient conversationQuery];
    query.limit = 10;
    query.skip = 0;
    [query whereKey:kAVIMKeyMember containsAllObjectsInArray:userIdsArray];
    [query whereKey:AVIMAttr(@"type") equalTo:@(type)];
    [query findConversationsWithCallback:^(NSArray *objects, NSError *error) {
        if (error) {

            conversationBlock(nil, error);
    } else if (!objects || objects.count < 1) {
        
        [weakSelf.imClient createConversationWithName:nil clientIds:userIdsArray callback:^(AVIMConversation *conversation, NSError *error) {
            if (error) {
                conversationBlock(nil, error);
                return ;
            } else {
                [weakSelf.imClient createConversationWithName:nil clientIds:userIdsArray attributes:@{@"type":@(type)} options:(AVIMConversationOptionNone) callback:^(AVIMConversation *conversation, NSError *error) {
                    conversationBlock(conversation, error);
                }];
            }
        }];
    } else {
        conversationBlock(objects.firstObject, error);
    }
}];
conversationBlock = nil;
}