odoo13在下载XLS的时候报错服务内部错误解决办法，在使用odoo时在使用透视表下载XLS时报如下错误：错误:
The server encountered an internal error and was unable to complete your request. Either the server is overloaded or there is an error in the application.
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报这个错误是由于使用deb包安装或者安装的时候有两个依赖包没安装成功导致的。安装依赖包即重启odoo即可解决。
sudo pip3 install xlwt
sudo pip3 install num2words