Export errors with Blender 5

[caseygibson-emesent]

I'm getting a bunch of errors with Blender 5. Is this repo still maintained?

Python: Traceback (most recent call last):
File "/Users/casey.gibson/Library/Application Support/Blender/5.0/scripts/addons/babylon_js/json_exporter.py", line 118, in execute
mesh = Mesh (object, scene, self)
File "/Users/casey.gibson/Library/Application Support/Blender/5.0/scripts/addons/babylon_js/mesh.py", Line 151, in _init
recipe = BakingRecipe (bpyMesh, exporter)
File "/Users/casey.gibson/Library/Application Support/Blender/5.0/scripts/addons/babylon_js/materials/baking_recipe.py", line 43, in _init_
bjsMaterial = BJSMaterial (bpyMaterial, exporter)
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File "/Users/casey.gibson/Library/Application Support/Blender/5.0/scripts/addons/babylon_js/materials/material.py", line 109, in _init_
self.bjsNodeTree = AbstractBJSNode.readMaterialNodeTree(bpyMaterial.node_tree, self.overloadChannels)
File /Users/casey.gibson/Library/Application Support/Blender/5.0/scripts/addons/babylon_js/materials/nodes/abstract.py", line 265, in readMaterialNodeTree return AbstractBJSNode.readNodeTree(node_tree, 'ShaderNodeOutputMaterial', overloadChannels)
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File"/Users/casey.gibson/Library/Application Support/Blender/5.0/scripts/addons/babylon_js/materials/nodes/abstract.py", line 285, in readNodeTree return AbstractBJSNode(output, topLevelId, overloadChannels)
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File"/Users/casey.gibson/Library/Application Support/Blender/5.0/scripts/addons/babylon_js/materials/nodes/abstract.py"
", Line 84, in _init
bjsWrapperNode = AbstractBJSNode.GetBJSWrapperNode(nodeSocket.links[O].from_node, nodeSocket.name, overloadChannels)
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File "/Users/casey.gibson/Library/Application Support/Blender/5.0/scripts/addons/babylon_js/materials/nodes/abstract.py"
", Line 335, in GetBJSWrapperNode
return PrincipledBJSNode(bpyNode, socketName, overloadChannels)
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File "/Users/casey.gibson/Library/Application Support/Blender/5.0/scripts/addons/babylon_js/materials/nodes/principled.py"
", line 25, in _init
subsurface = self.getDefault Subsurface')
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File "/Users/casey.gibson/Library/Application Support/Blender/5.0/scripts/addons/babylon_js/materials/nodes/abstract.py"
", Line 217, in getDefault
return self.defaults [socketName]
KeyError: 'Subsurface'