https://community.blueprism.com/t5/Product-Forum/On-some-occasions-ERROR-Internal-A-token-must-be-provided-to/m-p/54517#M9024 Disregard my previous comments...can you check if you are passing a data item for token? Sat, 25 Aug 2018 14:10:00 GMT Niteesh_ReddyBo 2018-08-25T14:10:00Z https://community.blueprism.com/t5/Product-Forum/On-some-occasions-ERROR-Internal-A-token-must-be-provided-to/m-p/54513#M9020 I'm having a problem On some occasions, the action acquire Lock does not return an exit token. Therefore when I try to unblock, the process stays stuck.   Any idea or is it a bug of the product? How do I solve this? I attach my screenshots. Fri, 03 Aug 2018 20:55:00 GMT https://community.blueprism.com/t5/Product-Forum/On-some-occasions-ERROR-Internal-A-token-must-be-provided-to/m-p/54513#M9020 EstebanCarrasco 2018-08-03T20:55:00Z https://community.blueprism.com/t5/Product-Forum/On-some-occasions-ERROR-Internal-A-token-must-be-provided-to/m-p/54514#M9021 Please can you post sample  code u are using while lock?Also please post screenshot of Lock panel in the System tab.  I hope u are following the standard template code published by Blueprism. Sun, 05 Aug 2018 14:47:00 GMT https://community.blueprism.com/t5/Product-Forum/On-some-occasions-ERROR-Internal-A-token-must-be-provided-to/m-p/54514#M9021 NarayanShrawagi 2018-08-05T14:47:00Z https://community.blueprism.com/t5/Product-Forum/On-some-occasions-ERROR-Internal-A-token-must-be-provided-to/m-p/54515#M9022 If Acquire Lock does not return a token then it means some one else has the lock. Mon, 06 Aug 2018 13:22:00 GMT https://community.blueprism.com/t5/Product-Forum/On-some-occasions-ERROR-Internal-A-token-must-be-provided-to/m-p/54515#M9022 John__Carter 2018-08-06T13:22:00Z https://community.blueprism.com/t5/Product-Forum/On-some-occasions-ERROR-Internal-A-token-must-be-provided-to/m-p/54516#M9023 If i'm not wrong you must be using 'Release Lock' directly. Instead of that create a logic to check if the lock is available & then only release the lock. This will make the process not to get stuck. Sat, 25 Aug 2018 13:45:00 GMT https://community.blueprism.com/t5/Product-Forum/On-some-occasions-ERROR-Internal-A-token-must-be-provided-to/m-p/54516#M9023 Niteesh_ReddyBo 2018-08-25T13:45:00Z https://community.blueprism.com/t5/Product-Forum/On-some-occasions-ERROR-Internal-A-token-must-be-provided-to/m-p/54517#M9024 Disregard my previous comments...can you check if you are passing a data item for token? Sat, 25 Aug 2018 14:10:00 GMT https://community.blueprism.com/t5/Product-Forum/On-some-occasions-ERROR-Internal-A-token-must-be-provided-to/m-p/54517#M9024 Niteesh_ReddyBo 2018-08-25T14:10:00Z