PrintableCal update blocked as exploit

[WinterFam]

I am trying to update my PrintableCal add-on for Microsoft Excel to the most recent version. I was able to install the add-on without a problem a month ago, but as I try to update to a newer version, MalwareBytes brings up an "Exploit Blocked" box and the update fails. I have attached the Log File below. I also contacted PrintableCal support about this and they responded with:

I used VirusTotal to scan both the latest PrintableCal installer. You can find the reports linked below. VirusTotal uses the MalwareBytes engine, as well as 68 other antivirus engines. There were 0 detections, which would further indicate that either your virus definition file is outdated, or something is wrong with your Malwarebytes installation.

https://www.virustotal.com/#/url/10f7dae81edc55ee84994535483d89de100f894aa27b2f2daaaaba6ad60029b8/detection

Thank you,  Ann Winter - wintermail@alum.mit.edu

Malwarebytes
www.malwarebytes.com

-Log Details-
Protection Event Date: 4/25/19
Protection Event Time: 9:28 AM
Log File: 5a01c350-6766-11e9-becf-000000000000.json

-Software Information-
Version: 3.7.1.2839
Components Version: 1.0.563
Update Package Version: 1.0.10332
License: Premium

-System Information-
OS: Windows 10 (Build 17134.706)
CPU: x64
File System: NTFS
User: System

-Exploit Details-
File: 0
(No malicious items detected)

Exploit: 1
Malware.Exploit.Agent.Generic, , Blocked, [0], [392684],0.0.0

-Exploit Data-
Affected Application: Microsoft Office Excel
Protection Layer: Application Behavior Protection
Protection Technique: Exploit payload file blocked
File Name: C:\Users\Winter\AppData\Local\Temp\PrintableCal_Setup.exe
URL: 

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