Resolve non-numeric argument error in mx_api_content for medrxivr

When attempting to download data from the medrxivr API using the mx_api_content function, the following error is encountered:

Error in count/100 : non-numeric argument to binary operator
Calls: mx_api_content
Execution halted

Run the following command in the terminal:

makim scheduler.download-rxivr --server medrxiv --begin 2024-03-14 --end 2024-05-17 --target /opt/services/es-journals/data/rxivx/medrxiv/downloaded/

Alternatively, execute the following R code:

library(medrxivr)
preprint_data <- mx_api_content(server = "medrxiv", from_date = "2024-03-14", to_date = "2024-05-17")

The command fails with the error message:

Error in count/100 : non-numeric argument to binary operator

Direct attempts to fetch data using the medrxivr library in an R console result in the same error.
URL validation for the API endpoint confirms that the endpoint is functional:
```
https://api.biorxiv.org/details/biorxiv/2024-03-21/2024-04-28/45
```

This error prevents the retrieval of preprint data from the medrxivr API, impacting data processing workflows.

thegraphnetwork-literev / es-journals