提交小程序审核，怎么老出现提交失败system error，怎么回事

[代码]// 点击分享按钮[代码][代码]shareClicked:[代码][代码]function[代码][代码]() {[代码][代码]    [代码][代码]if[代码] [代码](cc.sys.platform === cc.sys.WECHAT_GAME) {[代码] [代码]        [代码][代码]var[代码] [代码]openDataContext = wx.getOpenDataContext()[代码][代码]        [代码][代码]var[代码] [代码]sharedCanvas = openDataContext.canvas[代码] [代码]        [代码][代码]if[代码] [代码](sharedCanvas) {[代码][代码]            [代码][代码]cc.log ([代码][代码]"分享的面板存在"[代码][代码])[代码][代码]        [代码][代码]}[代码] [代码]        [代码][代码]var[代码] [代码]canvas = wx.createCanvas()[代码][代码]        [代码][代码]var[代码] [代码]context = canvas.getContext([代码][代码]'2d'[代码][代码])[代码][代码]        [代码][代码]context.drawImage(sharedCanvas, 0, 0)[代码] [代码]        [代码][代码]cc.log ([代码][代码]"微信分享"[代码][代码])[代码][代码]    [代码][代码]}[代码][代码]},[代码]在使用cocos creator开发小游戏时，需要获取些用户信息来制作排行版，根据提供的 https://mp.weixin.qq.com/debug/wxagame/dev/tutorial/open-ability/open-data.html?t=2018323 中的教程，主域和开放数据域的相关配置已经配置完成，但最后需要调用时却给出这样的提示： An unsecure canvas can't take an secure canvas as arugment of drawImage When using subcontext