Getting index out of range while inserting items in candy machine

[schauhan592]

I got this error while trying to insert items ==>

RangeError: Index out of range
at checkInt (index.js?4bfd:1396:1)
at Uint8Array.writeUIntLE (index.js?4bfd:1406:1)
at UInt.encode (Layout.js?66bc:515:1)
at eval (Layout.js?66bc:954:1)
at Array.reduce ()
at Sequence.encode (Layout.js?66bc:953:1)
at Structure.encode (Layout.js?66bc:1092:1)
at eval (index.browser.esm.js?91d8:884:1)
at Array.forEach ()
at Message.serialize (index.browser.esm.js?91d8:882:1)
at Transaction.serializeMessage (index.browser.esm.js?91d8:1676:1)
at Transaction.serialize (index.browser.esm.js?91d8:1881:1)
at Dd (inpage.js:155:493165)
at Ud (inpage.js:155:493270)
at inpage.js:155:1041705
at f (inpage.js:3:225915)
at Generator._invoke (inpage.js:3:225703)
at Generator.next (inpage.js:3:226344)
at inpage.js:155:1040163
at new Promise ()
at oP (inpage.js:155:1039908)
at i.signTransaction (inpage.js:155:1041454)
at WalletAdapterIdentityDriver.signTransaction (WalletAdapterIdentityDriver.mjs?c4df:23:1)
at IdentityClient.signTransaction (IdentityClient.mjs?e30d:32:1)
at RpcClient.signTransaction (RpcClient.mjs?1566:48:1)
at RpcClient.sendTransaction (RpcClient.mjs?1566:61:1)
at async RpcClient.sendAndConfirmTransaction (RpcClient.mjs?1566:91:1)
at async TransactionBuilder.sendAndConfirm (TransactionBuilder.mjs?dbc6:111:1)
at async Disposable.run (Disposable.mjs?f3f2:18:1)