FX & Material Showroom: Error compiling fragment shader

QSpirvCompiler: Failed to parse shader
Failed to compile fragment shader 

"custom material -->floor.vert>floor.frag:e7e4decd50bddc6770e06461cb90c7e39abc694c;hasLighting=true;lightCount=0;specularModel=Default;;diffuseMap={;;;;};emissiveMap={;;;;};specularMap={;;;;};baseColorMap={;;;;};bumpMap={;;;;};specularAmountMap={;;;;};normalMap={;;;;};clearcoatNormalMap={;;;;};opacityMap={;;;;};roughnessMap={;;;;};metalnessMap={;;;;};occlusionMap={;;;;};translucencyMap={;;;;};heightMap={;;;;};clearcoatMap={;;;;};clearcoatRoughnessMap={;;;;};transmissionMap={;;;;};thicknessMap={;;;;};opacityMap_channel=R;roughnessMap_channel=R;metalnessMap_channel=R;occlusionMap_channel=R;translucencyMap_channel=R;heightMap_channel=R;clearcoatMap_channel=R;clearcoatRoughnessMap_channel=R;transmissionMap_channel=R;thicknessMap_channel=R;boneCount=0;alphaMode=Default;;vertexAttributes={position=true;normal=true;texcoord0=true;texcoord1=true;tangent=true;binormal=true;;}};targetCount=0;targetPositionOffset=255;targetNormalOffset=255;targetTangentOffset=255;targetBinormalOffset=255;targetTexCoord0Offset=255;targetTexCoord1Offset=255;targetColorOffset=255;specularAAEnabled=true;debugMode=0" 
 "ERROR: :29: 'paramsTexture' : undeclared identifier \nERROR: :29: '' : compilation terminated \nERROR: 2 compilation errors.  No code generated."