Cannot upload a Generic peak intensity table (no retention time)

Hi there, when i upload a Generic peak intensity table (generated from MetaboAnalystR package, R4.2.2) as i post below (the output data named “metaboanalyst_input” automaticly),

I’ve read the instructions carefully and I’m pretty sure i upload the data at the right place and set the correct parameters, but the webset resent the Error warning as i post below. Could you help me with this problem? I’ll be really appreciate!

I also checked the example datasets, they looked same format with my .csv file.

Please follow the post guidelines.