如果ploneformgen数据从1.7.1升级到1.7.17，会发生什么？

Question

我有一个现有的Plone站点4.1.4，Ploneformgen 1.7.1在Linux独立安装上工作了2年。从过去的15天开始，虽然我看到它在屏幕上与./bin/plonectl fg一起运行，但它还没有出现在浏览器上。它每次都显示不同的日志。我所做的只是重新开始，直到2-3小时后停止。我得到的最新错误日志：

2015-01-09 10:58:12 ERROR Zope.SiteErrorLog 1420781292.380.372194570069 http://example.com:8081/site/checklist/tinymce-save
Traceback (innermost last):
  Module ZPublisher.Publish, line 126, in publish  
  Module ZPublisher.mapply, line 77, in mapply
  Module ZPublisher.Publish, line 46, in call_object
  Module Products.TinyMCE.browser.browser, line 33, in save
  Module Products.TinyMCE.adapters.Save, line 18, in save
AttributeError: 'NoneType' object has no attribute 'set'

2015-01-09 11:01:06 ERROR Zope.SiteErrorLog 1420781466.020.201924322182 http://example.com:8081/site/checklist/tinymce-save
Traceback (innermost last):
  Module ZPublisher.Publish, line 126, in publish  
  Module ZPublisher.mapply, line 77, in mapply
  Module ZPublisher.Publish, line 46, in call_object
  Module Products.TinyMCE.browser.browser, line 33, in save
  Module Products.TinyMCE.adapters.Save, line 18, in save
AttributeError: 'NoneType' object has no attribute 'set'

2015-01-09 17:20:31 ERROR ZServer Bad HTTP request: 'h'

可能是什么问题？如果我将ploneformgen从现有的1.7.1升级到1.7.17，那么对现有数据的影响是什么？