the progress bar disappear after it has been completed. Default value is <code>FALSE</code>.</li>
<li>
<code>datashield.errors.stop</code> is a logical to alter error handling behavior: if <code>TRUE</code> an error is raised when at least one server has failed, otherwise a warning message is issued. Default value is <code>TRUE</code>.</li>
<li>
<code>datashield.errors.print</code> is a logical for controlling the error print in the console: if <code>TRUE</code> the errors are automatically printed in rich 