I only can assume this problem is related to time change over to summer time.
???

For members who still interested to fix the problem with EconomicEvents Downloader go to MultiCharts forum

Forum index » MultiCharts » User Contributed Studies and Indicator Library
»The Economic Events Collection for MultiCharts

in them tread MultiCharts community member has a version to bypass this problem, he simly create the new txt files.
Sorry I can't post the direct link.