diff --git a/src/components/ClassicElasticTab.tsx b/src/components/ClassicElasticTab.tsx
index e6202f2a5e..e8285f4efc 100644
--- a/src/components/ClassicElasticTab.tsx
+++ b/src/components/ClassicElasticTab.tsx
@@ -45,10 +45,18 @@ function ClassicElasticTab() {
 
   const upToMedium = useMedia(`(max-width: ${MEDIA_WIDTHS.upToMedium}px)`)
 
-  const showLegacyExplicit = upToMedium ? false : isFarmpage ? shouldShowFarmTab : shouldShowPositionTab
-
   const dontShowLegacy = [ChainId.ZKEVM, ChainId.BASE, ChainId.LINEA].includes(chainId)
 
+  const showLegacyExplicit =
+    upToMedium || dontShowLegacy ? false : isFarmpage ? shouldShowFarmTab : shouldShowPositionTab
+
+  useEffect(() => {
+    if (dontShowLegacy && tab === VERSION.ELASTIC_LEGACY) {
+      const newQs = { ...qs, tab: VERSION.ELASTIC }
+      navigate({ search: stringify(newQs) }, { replace: true })
+    }
+  }, [tab, dontShowLegacy, navigate, qs])
+
   const legacyTag = (small?: boolean) => (
     <Text
       sx={{
diff --git a/src/pages/ElasticLegacy/FarmLegacy.tsx b/src/pages/ElasticLegacy/FarmLegacy.tsx
index f62a27ea64..5717e1d3d5 100644
--- a/src/pages/ElasticLegacy/FarmLegacy.tsx
+++ b/src/pages/ElasticLegacy/FarmLegacy.tsx
@@ -155,7 +155,7 @@ export default function FarmLegacy({
     }
   }
 
-  const farmContract = useProMMFarmContract(config[chainId].farmContract || '')
+  const farmContract = useProMMFarmContract(config[chainId]?.farmContract || '')
 
   const handleWithdraw = async () => {
     setShowConfirmModal('withdraw')
diff --git a/src/pages/MyEarnings/ElasticPools/SinglePosition/PositionView.tsx b/src/pages/MyEarnings/ElasticPools/SinglePosition/PositionView.tsx
index 7fb9f2b562..efacd484e4 100644
--- a/src/pages/MyEarnings/ElasticPools/SinglePosition/PositionView.tsx
+++ b/src/pages/MyEarnings/ElasticPools/SinglePosition/PositionView.tsx
@@ -275,7 +275,7 @@ const PositionView: React.FC<CommonProps> = props => {
               }
             />
           ) : (
-            <Value>--</Value>
+            <Value>$0</Value>
           )}
         </Row>
       </Column>
@@ -315,10 +315,12 @@ const PositionView: React.FC<CommonProps> = props => {
               <Text as="span" fontSize="16px" fontWeight={500} lineHeight={'20px'}>
                 {+positionEarning.pendingRewardUSD
                   ? formatDisplayNumber(positionEarning.pendingRewardUSD, { style: 'currency', significantDigits: 6 })
+                  : farmRewards?.length
+                  ? '$0'
                   : '--'}
               </Text>
             }
-            disabled={!+positionEarning.pendingRewardUSD}
+            disabled={disabledHarvest}
             text={
               <>
                 {farmRewards?.map((rw, index) => (