Found the following HTML validation problems:
as.data.frame.symbolic_histogram.html:51:1 (as.data.frame.symbolic_histogram.Rd:12): Warning: missing </ul> before </div>
as.data.frame.symbolic_interval.html:51:1 (as.data.frame.symbolic_interval.Rd:12): Warning: missing </ul> before </div>
as.data.frame.symbolic_modal.html:51:1 (as.data.frame.symbolic_modal.Rd:12): Warning: missing </ul> before </div>
as.data.frame.symbolic_set.html:51:1 (as.data.frame.symbolic_set.Rd:12): Warning: missing </ul> before </div>
calc.burt.sym.html:50:1 (calc.burt.sym.Rd:12): Warning: missing </ul> before </div>
cash-.symbolic_histogram.html:51:1 (cash-.symbolic_histogram.Rd:12): Warning: missing </ul> before </div>
cash-.symbolic_modal.html:51:1 (cash-.symbolic_modal.Rd:12): Warning: missing </ul> before </div>
cash-.symbolic_set.html:51:1 (cash-.symbolic_set.Rd:12): Warning: missing </ul> before </div>
format.symbolic_histogram.html:51:1 (format.symbolic_histogram.Rd:12): Warning: missing </ul> before </div>
format.symbolic_interval.html:51:1 (format.symbolic_interval.Rd:12): Warning: missing </ul> before </div>
format.symbolic_modal.html:51:1 (format.symbolic_modal.Rd:12): Warning: missing </ul> before </div>
format.symbolic_set.html:51:1 (format.symbolic_set.Rd:12): Warning: missing </ul> before </div>
get_cats.html:50:1 (get_cats.Rd:12): Warning: missing </ul> before </div>
get_props.html:50:1 (get_props.Rd:12): Warning: missing </ul> before </div>
interval.centers.html:46:1 (interval.centers.Rd:10): Warning: missing </ul> before </div>
interval.max.html:46:1 (interval.max.Rd:10): Warning: missing </ul> before </div>
interval.min.html:46:1 (interval.min.Rd:10): Warning: missing </ul> before </div>
interval.ranges.html:46:1 (interval.ranges.Rd:10): Warning: missing </ul> before </div>
method_summary.html:50:1 (method_summary.Rd:12): Warning: missing </ul> before </div>
plot.sym_umap.html:51:1 (plot.sym_umap.Rd:12): Warning: missing </ul> before </div>
sym.umap.html:71:1 (sym.umap.Rd:27): Warning: missing </ul> before </div>