diff --git a/src/common/Configuration/Config.cpp b/src/common/Configuration/Config.cpp
index d01d3f7b8..5e4c3ea41 100644
--- a/src/common/Configuration/Config.cpp
+++ b/src/common/Configuration/Config.cpp
@@ -374,7 +374,7 @@ T ConfigMgr::GetValueDefault(std::string const& name, T const& def, bool showLog
         if (showLogs)
         {
             LOG_WARN("server.loading", "Missing property {} in config file {}, recovered with environment '{}' value.",
-                name.c_str(), _filename.c_str(), envVar->c_str());
+                name, _filename, envVar->c_str());
         }
 
         strValue = *envVar;
@@ -411,7 +411,7 @@ std::string ConfigMgr::GetValueDefault<std::string>(std::string const& name, std
             if (showLogs)
             {
                 LOG_WARN("server.loading", "Missing property {} in config file {}, recovered with environment '{}' value.",
-                    name.c_str(), _filename.c_str(), envVar->c_str());
+                    name, _filename, envVar->c_str());
             }
 
             return *envVar;
diff --git a/src/server/game/Handlers/LFGHandler.cpp b/src/server/game/Handlers/LFGHandler.cpp
index 8ebc0fd44..a78b88644 100644
--- a/src/server/game/Handlers/LFGHandler.cpp
+++ b/src/server/game/Handlers/LFGHandler.cpp
@@ -68,7 +68,7 @@ void WorldSession::HandleLfgJoinOpcode(WorldPackets::LFG::LFGJoin& packet)
     }
 
     LOG_DEBUG("network", "CMSG_LFG_JOIN [{}] roles: {}, Dungeons: {}, Comment: {}",
-                 GetPlayerInfo().c_str(), packet.Roles, newDungeons.size(), packet.Comment.c_str());
+                 GetPlayerInfo(), packet.Roles, newDungeons.size(), packet.Comment);
 
     sLFGMgr->JoinLfg(GetPlayer(), uint8(packet.Roles), newDungeons, packet.Comment);
 }
diff --git a/src/server/game/Spells/SpellMgr.cpp b/src/server/game/Spells/SpellMgr.cpp
index 103d93d40..ba013ce6e 100644
--- a/src/server/game/Spells/SpellMgr.cpp
+++ b/src/server/game/Spells/SpellMgr.cpp
@@ -2716,11 +2716,11 @@ void SpellMgr::LoadSpellInfoStore()
 
         for (SpellEffectInfo const& spellEffectInfo : mSpellInfoMap[spellIndex]->GetEffects())
         {
-            //ASSERT(effect.EffectIndex < MAX_SPELL_EFFECTS, "MAX_SPELL_EFFECTS must be at least %u", effect.EffectIndex + 1);
-            ASSERT(spellEffectInfo.Effect < TOTAL_SPELL_EFFECTS, "TOTAL_SPELL_EFFECTS must be at least %u", spellEffectInfo.Effect + 1);
-            ASSERT(spellEffectInfo.ApplyAuraName < TOTAL_AURAS, "TOTAL_AURAS must be at least %u", spellEffectInfo.ApplyAuraName + 1);
-            ASSERT(spellEffectInfo.TargetA.GetTarget() < TOTAL_SPELL_TARGETS, "TOTAL_SPELL_TARGETS must be at least %u", spellEffectInfo.TargetA.GetTarget() + 1);
-            ASSERT(spellEffectInfo.TargetB.GetTarget() < TOTAL_SPELL_TARGETS, "TOTAL_SPELL_TARGETS must be at least %u", spellEffectInfo.TargetB.GetTarget() + 1);
+            //ASSERT(effect.EffectIndex < MAX_SPELL_EFFECTS, "MAX_SPELL_EFFECTS must be at least {}", effect.EffectIndex + 1);
+            ASSERT(spellEffectInfo.Effect < TOTAL_SPELL_EFFECTS, "TOTAL_SPELL_EFFECTS must be at least {}", spellEffectInfo.Effect + 1);
+            ASSERT(spellEffectInfo.ApplyAuraName < TOTAL_AURAS, "TOTAL_AURAS must be at least {}", spellEffectInfo.ApplyAuraName + 1);
+            ASSERT(spellEffectInfo.TargetA.GetTarget() < TOTAL_SPELL_TARGETS, "TOTAL_SPELL_TARGETS must be at least {}", spellEffectInfo.TargetA.GetTarget() + 1);
+            ASSERT(spellEffectInfo.TargetB.GetTarget() < TOTAL_SPELL_TARGETS, "TOTAL_SPELL_TARGETS must be at least {}", spellEffectInfo.TargetB.GetTarget() + 1);
         }
     }