RichApi.Error: There was an internal error while processing the request.

I have developed an Excel Javascript plugin using the React framework.

The add-in workflow is simple.

1. Request data from Ui using APIs
2. Passing entities' column names and authorized API keys
3. Start writing data into an active Excel sheet by pulling the button.

Steps to reproduce

try {
    var i = 0;
    // these data are coming from APIs
    var allCompanies = [12, 32, 33, 43, 45, 66, 12, 32, 10, 12, 21, 90];
    allCompanies.forEach(async _company => {
      // calling APIs for each _docs and writing data for that companies
      await fetchData(_company).then(async (responseRows) => {
        await Excel.run(async (context) => {
          let sheet = context.workbook.worksheets.getActiveWorksheet();
          sheet.load(["name"]);
          await context.sync();
          for (let i = 0; i < responseRows.length; i++) {
            // data operations into Exel sheet
            // creating table, table header, applying Css
            // writting value to each cells
          }
          sheet.getUsedRange().format.autofitColumns();
          sheet.getUsedRange().format.autofitRows();
          await context.sync();
        });
      });
    });
  } catch (error) {
    console.log("error on appending data into excel " + error);
  }