Platform Event Flow error: Probably Limit Exceeded or 0 recipients

The message is "Probably Limit Exceeded or 0 recipients ". I am trying to send an email to a list of addresses with the Schedule Triggered Flow. Here is the error email I received:

Error element Sending_Mail (FlowActionCall).

Probably Limit Exceeded or 0 recipients

Flow Details

Flow API Name: TrainingLinkForLeads

Type: Autolaunched Flow

Version: 1

Status: Active

Flow Interview Details

Interview Label: TrainingLinkForLeads 1/12/2023, 4:51 AM

Interview GUID: 6342069bae45317d6ae22c860675185a5dde0c-df48

Current User: vinitha

Start time: 1/12/2023, 4:51 AM

Duration: 0 seconds

How the Interview Started

vinitha kotagiri (0055j000003DBMz) started the flow interview.

API Version for Running the Flow: 56

GET RECORDS: GetLeadRecords

Find all Lead records where:

Email Is null false

Store those records in {!LeadRecords}.

Save these field values in the variable: Id, LastName, Email, Scheduled_Day__c, Schedule_Time__c, Schedule_Date__c

Result

Successfully found records.

LOOP: IteratingLeadRecords

Loop Through: [00Q5j000005d6cpEAA,00Q5j000005d6cqEAA,00Q5j000005d6crEAA,00Q5j000005d6csEAA,00Q5j000005d6ctEAA,00Q5j000005d6coEAA,00Q5j000005d6ccEAA,00Q5j000005d6cdEAA,00Q5j000005d6ceEAA,00Q5j000005d6cfEAA,00Q5j000005d6cgEAA,00Q5j000005d6ciEAA,00Q5j000005d6clEAA,00Q5j000005d6cmEAA,00Q5j000005d6cnEAA,00Q5j00000JZfX1EAL,00Q5j000005d6cuEAA,00Q5j000005d6cvEAA,00Q5j000005d6cwEAA,00Q5j000005d6cxEAA,00Q5j00000JYlMuEAL,00Q5j000005d6chEAA,00Q5j000005d6cjEAA,00Q5j000005d6ckEAA,00Q5j00000IbYmHEAV,00Q5j00000IbYi5EAF,00Q5j00000IbkE8EAJ,00Q5j00000Ic0XnEAJ]

Iteration: 0

Current iteration item: 00Q5j000005d6cpEAA

SEND EMAIL: Sending Mail

Inputs:

emailBody = {!Body} (<p>Hii Young ,Please join with the given link by </p><p>https://zoom.us/j/2409372869?pwd=VFFPdmVQSHlPZXV6Z0twZ0J6Wi9BUT09</p>)

emailAddresses = {!IteratingLeadRecords.Email} (a_young@dickenson.com)

emailSubject = TrainingLink

Error Occurred: Probably Limit Exceeded or 0 recipients

Am not understanding the error. Google search wasn't showing much about this.Could someone help me.Thank you!