<simpleError in rawToChar(value): long vectors not supported yet: raw.c:68>

## Project Robyn

## Describe issue
Getting this error from robyn_write and robyn_allocator even for very less iterations like 200 and 2 trials.

## Provide reproducible example
Issues are often related to custom input data that is difficult to debug without. If necessary, please modify your data to mask real values and share a dataset that is able to reproduce the issue. Please also share your model configuration and exported JSON files if available.

## Environment & Robyn version
Make sure you're using the latest Robyn version before you post an issue.
- Check and share Robyn version: `packageVersion("Robyn")` - 3.11.1
- R version (Please, check and share: `sessionInfo()` or `R.version$version.string`) - 4.3.3