小程序后台发现[native code] 报错

都是基础库低版本的 请问这是什么问题

appid: wxe14f799f9d1050ed

SyntaxError

line:6985,column:13829,SyntaxError: Unexpected token \'=\'. Expected a \')\' or a \',\' after a parameter declaration. Stack:[native code]

evaluateScriptFile@https://lib/WAServiceMainContext.js:1:13829

value@https://lib/WAServiceMainContext.js:1:128275

https://lib/WAServiceMainContext.js:1:130022

https://lib/WAServiceMainContext.js:1:125891

https://lib/WAServiceMainContext.js:1:216719

https://lib/WAServiceMainContext.js:1:215687

https://lib/WAServiceMainContext.js:1:215651

https://lib/WAServiceMainContext.js:1:216719

b@https://lib/WAServiceMainContext.js:1:1997