Getting error when trying to use the tool

[yaron1974]

i loaded the tool via the plugings at my qgis (Ver 3.4.2) add SHP (polygon) and trying to run the plugin, but im getting the following message:

2020-10-27T17:24:11 WARNING Traceback (most recent call last):
File "C:/Users/yaronl/AppData/Roaming/QGIS/QGIS3\profiles\default/python/plugins\qlyrx\qlyrx.py", line 1527, in run
self.apply_lyrx_symbols(layer, j_data, geometry_general_type_str)
File "C:/Users/yaronl/AppData/Roaming/QGIS/QGIS3\profiles\default/python/plugins\qlyrx\qlyrx.py", line 1250, in apply_lyrx_symbols
rend_idx = dataset_names.index(active_name)
ValueError: 'lots' is not in list

i have no idea what to do