500 connection Timed Out while updating Scheduling settings SAP TM

Good Afternoon community,

I person an issue, erstwhile im trying to upload the scheduling settings successful SAP TM, by an excel file, the strategy unopen down aft 10-15 minutes. This is the mistake that one get:

I've alredy cheque the ST22, and one dont person information. 

Please, if idiosyncratic person seen this message, one would admit the help.