iOS shader: 'Vector' syntax error (on gles)

Hello, everyone! I've wrote a shader that uses a Vector paramter passed from outside by script. It works perfectly in Editor, but when I'm trying to build it for iOS I get that error: Shader error in 'Custom/UI/UI - glow around point': 'Vector' : syntax error syntax error at line 58 (on gles). Suprisingly, I can't google any info on this - why is this occuring and how to fix it? Would appreciate if anyone could help!

line 58 reads the following:

 uniform Vector _PointPosition;

Here's the full shader code:

 Shader "Custom/UI/UI - Glow around point"
 {
     Properties
     {
         [PerRendererData]_MainTex("Main texture", 2D) = "white" {}
         _Color("Main color", Color) = (0,0,0,0)
         _GlowColor("Glow color", Color) = (0,0,0,0)
         _GlowDistance("Glow power (distance)", float) = 5
         _GlowSpeed("Glow Speed", float) = 2
         _GlowRadius("Glow attenuation (radius)", float) = 50
 
         [Space(30)]
 
         _StencilComp("Stencil Comparison", Float) = 8
         _Stencil("Stencil ID", Float) = 0
         _StencilOp("Stencil Operation", Float) = 0
         _StencilWriteMask("Stencil Write Mask", Float) = 255
         _StencilReadMask("Stencil Read Mask", Float) = 255
         _ColorMask("Color Mask", Float) = 15
     }
 
         SubShader
     {
             Tags
         {
             "Queue" = "Transparent"
             "IgnoreProjector" = "True"
             "RenderType" = "Transparent"
             "PreviewType" = "Plane"
         }
 
             Stencil
         {
             Ref[_Stencil]
             Comp[_StencilComp]
             Pass[_StencilOp]
             ReadMask[_StencilReadMask]
             WriteMask[_StencilWriteMask]
         }
 
             ColorMask[_ColorMask]
             Cull Off
             ZWrite Off
             ZTest[unity_GUIZTestMode]
             Blend SrcAlpha One
 
             Pass
         {
             CGPROGRAM
             #pragma vertex vert
             #pragma fragment frag
 
             #include "UnityCG.cginc"
 
             uniform sampler2D _MainTex;
             
             // Use in a script that knows the position on fake light emitting point Shader.SetGlobalVector("_PointPosition", fakeLightObject.transform.position);
             uniform Vector _PointPosition;
 
             uniform float4 _MainTex_ST;
             uniform float4 _MainTex_TexelSize;
             uniform float4 _Color;
             uniform float4 _GlowColor;
 
             uniform float _GlowDistance;
             uniform float _GlowRadius;
             uniform float _GlowSpeed;
 
             uniform fixed _isGoalHornOn;
 
             struct appdata
             {
                 float4 vertex : POSITION;
                 float2 texcoord : TEXCOORD0;
                 float4 color : COLOR;
             };
 
             struct v2f
             {
                 float2 uv : TEXCOORD0;
                 float4 vertex : SV_POSITION;
                 float4 color : COLOR;
             };
 
             v2f vert(appdata v)
             {
                 v2f o;
                 o.vertex = UnityObjectToClipPos(v.vertex);
                 o.color = v.color;
                 o.uv = TRANSFORM_TEX(v.texcoord, _MainTex);
                 return o;
             }
 
             fixed4 frag(v2f i) : SV_Target
             {
                 fixed4 color = _Color * tex2D(_MainTex, i.uv*_MainTex_ST)*i.color;
 
                 float dist = distance(_PointPosition, i.vertex) / _GlowDistance;
 
                 fixed glowIntensity = (sin(_Time.y*_GlowSpeed) + 1)*0.5;
 
                 color.rgb += lerp(0, smoothstep(_GlowRadius, 0, dist) * (_GlowColor*glowIntensity) / (dist), _isGoalHornOn);
 
                 return color;
             }
             ENDCG
         }
     }
         Fallback "Mobile/VertexLit"
 }