My await for asyncCall() to finish in the inputEntriesNotOnScreen function does not work despite it being in an async function. I get this error:

Uncaught SyntaxError: await is only valid in async functions and the top level bodies of modules

What does the second part of the error mean?

function resolve1MS() {
  return new Promise(resolve => {
    setTimeout(() => {
      resolve('resolved');
    }, 1);
  });
}

async function asyncCall() {
  let clicked = false;
  while( !clicked){
    await resolve1MS();
    if($('.ui-menu-item').length != 0){
      $('.ui-menu-item')[0].click();
      clicked = true;
      $matrix = $("table.timesheet tbody tr");
      return {
        lastRow: $matrix.last()
      }
    }
  }
}

async function inputEntriesNotOnScreen($matrix, notFoundInInitialSearch){
  let lastRow = undefined;
  notFoundInInitialSearch.forEach(function(item, index){
    console.log(item, index);
    if( lastRow == undefined){
      lastRow = $matrix.last();
    }
    else{
      lastRow = await asyncCall();
    }
    lastRow.find('.search')[0].click();
    let $searchBar = $('.ui-autocomplete-input');multiple times
    $($searchBar[index]).val(item[0][0]);
    $searchBar[index].dispatchEvent(new Event('input'));
  });
}