Error "Cannot read properties of undefined (reading 'getIn)" after sending +90 scheduled emails.

[ICozzi]

Dear Community,
has anyone experienced the error "

Cannot read properties of undefined (reading 'getIn)" after sending manually more than 90 emails with HubSpot's E-Mail editor? 
I have little to no experience with programming so any help is welcome. 
I attach a picture of the issue. I may also mention that I use templates extensively.
Thank you all!

[Jaycee_Lewis]

Hey, @ICozzi 👋 It's hard to say based solely on your screenshot. Can you share any more details? Is this a property that you are using in a Personalization token, for example? Any additional details you can share may help our community members to better understand your issue.

Best,

Jaycee

[ICozzi]

Dear Jaycee Lewis, thank you for your response. I'm using personalization when it comes to templates in E-Mails. I write and send a ton of E-Mails with templates and after sending about 90 of them with programmed dates to be sent, the system refuses to send them. The only feedback I receive is that sign on the screenshot in which a property "getIn" is mentioned. 
Could it be a limit on how many E-Mails I can send in a day set by Hubspot?
Thank you all for the help!