Can't turn on addon

I'm trying to install blend4web. I've set the path to the blend4web folder, restarted blender, then when I try to turn on blend4web in addons, I see the following error message:

Traceback (most recent call last):
File "C:\Program Files\Blender Foundation\Blender 2.82\2.82\scripts\modules\addon_utils.py", line 351, in enable
mod = __import__(module_name)
File "F:\Blender\apps\blend4web_ce\addons\blend4web\__init__.py", line 85, in <module>
exec(load_module_script.format(m))
File "<string>", line 7, in <module>
File "F:\Blender\apps\blend4web_ce\addons\blend4web\properties.py", line 27, in <module>
exec(blend4web.load_module_script.format(m))
File "<string>", line 7, in <module>
File "F:\Blender\apps\blend4web_ce\addons\blend4web\interface.py", line 43, in <module>
exec(blend4web.load_module_script.format(m))
File "<string>", line 7, in <module>
File "F:\Blender\apps\blend4web_ce\addons\blend4web\render_engine.py", line 51, in <module>
_OBJECT_PT_transform_locks = bpy.types.OBJECT_PT_transform_locks
AttributeError: 'RNA_Types' object has no attribute 'OBJECT_PT_transform_locks'