[Ifeffit] Issue with the Athena software - Athena Warning: redundant argument in sprintf

Good Afternoon, I am a new user of the Athena software. I am trying to fit my XANES spectra using the linear combination fitting tools in Athena. However, every time I run the fitting I receive the following warning message: [cid:image002.png@01D58286.ED191450] Would you please give me some advice to solve this problem? I am using the latest version of the Demeter system (version 0.9.26) for windows. I have attached a copy of the warning log and a screenshot of the error. Thanks, Clarissa