Fix pause exemption logic in whenNotPaused

contracts/Aavegotchi/libraries/LibAppStorage.sol

@@ -453,7 +453,7 @@ contract Modifiers {
 
     modifier whenNotPaused() {
         ///we exempt diamond owner from the freeze
-        if (msg.sender != LibDiamond.contractOwner() || msg.sender != s.relayerPetter) {
+        if (msg.sender != LibDiamond.contractOwner() && msg.sender != s.relayerPetter) {
             require(!s.diamondPaused, "AppStorage: Diamond paused");
         }
         _;

test/foundryTests/WhenNotPausedExemption.t.sol

@@ -0,0 +1,51 @@
+// SPDX-License-Identifier: MIT
+pragma solidity 0.8.1;
+
+import {Test} from "forge-std/Test.sol";
+import {Modifiers} from "../../contracts/Aavegotchi/libraries/LibAppStorage.sol";
+import {LibDiamond} from "../../contracts/shared/libraries/LibDiamond.sol";
+
+contract WhenNotPausedHarness is Modifiers {
+    function setContractOwner(address _owner) external {
+        LibDiamond.setContractOwner(_owner);
+    }
+
+    function setRelayerPetter(address _relayerPetter) external {
+        s.relayerPetter = _relayerPetter;
+    }
+
+    function setDiamondPaused(bool _paused) external {
+        s.diamondPaused = _paused;
+    }
+
+    function gatedAction() external whenNotPaused returns (uint256) {
+        return 1;
+    }
+}
+
+contract WhenNotPausedExemptionTest is Test {
+    WhenNotPausedHarness internal harness;
+
+    address internal constant OWNER = address(0xBEEF);
+    address internal constant RELAYER_PETTER = address(0xCAFE);
+    address internal constant RANDOM_USER = address(0x1234);
+
+    function setUp() public {
+        harness = new WhenNotPausedHarness();
+        harness.setContractOwner(OWNER);
+        harness.setRelayerPetter(RELAYER_PETTER);
+        harness.setDiamondPaused(true);
+    }
+
+    function testOwnerIsExemptFromPause() public {
+        vm.prank(OWNER);
+        uint256 result = harness.gatedAction();
+        assertEq(result, 1);
+    }
+
+    function testNonExemptUserStillBlockedWhenPaused() public {
+        vm.prank(RANDOM_USER);
+        vm.expectRevert("AppStorage: Diamond paused");
+        harness.gatedAction();
+    }
+}