Unknown Error: TotalRequests Limit exceeded Error in MuleSoft Composer

CAUSE:
The API limit for that Org has reached its threshold limit to process any API calls.
The limit is for 24 hours from the last API call.

Note: MuleSoft Composer does make API calls when running any flows. Each step in a Composer flow makes an API call.
For Example, the trigger, the actions, and if-else loop each make an API call.

Mathematical Example:

• Suppose in your flow you have 5 steps (Including trigger, action, if-else etc)
• The flow is modifying/creating 1000 records, with each trigger 
• Number of API Calls = 5*1000 = 5000 API Calls

SOLUTION:

1. Check your API Limit:
Navigate: Setup -> Company Setting -> Company Information



2. Check if the API Limit has been reached or not?
Navigate: Setup -> Environments -> System Overview



3. Request for increasing the API Request Limit - Refer KB - Increase your organization's API Request limit.