I attempted to upgrade DNN 07.04.00 to DNN 08.00.00 but 37% through the process it stopped with the error "The system cannot find the file specified.". Now when I navigate back to my site I receive an HTTP 502 response. Please help me to understand what the error, how to resolve it, and restart the upgrade process. Here are the contents of the upgradestat.log.resources file
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{"progress":25,"details":"Applying Upgrade Script 08.00.00.07","check0":"Running","check1":"NotStarted"}
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{"progress":25,"details":"Applying Upgrade Script 08.00.00.31","check0":"Running","check1":"NotStarted"}
{"progress":29,"details":"Upgrading Application to 7.4.1","check0":"Running","check1":"NotStarted"}
{"progress":29,"details":"Upgrading Application to 7.4.2","check0":"Running","check1":"NotStarted"}
{"progress":29,"details":"Upgrading Application to 8.0.0","check0":"Running","check1":"NotStarted"}
{"progress":29,"details":"Upgrading Application to 8.0.0.1","check0":"Running","check1":"NotStarted"}
{"progress":29,"details":"Upgrading Application to 8.0.0.2","check0":"Running","check1":"NotStarted"}
{"progress":29,"details":"Upgrading Application to 8.0.0.3","check0":"Running","check1":"NotStarted"}
{"progress":29,"details":"Upgrading Application to 8.0.0.4","check0":"Running","check1":"NotStarted"}
{"progress":29,"details":"Upgrading Application to 8.0.0.5","check0":"Running","check1":"NotStarted"}
{"progress":29,"details":"Upgrading Application to 8.0.0.6","check0":"Running","check1":"NotStarted"}
{"progress":29,"details":"Upgrading Application to 8.0.0.7","check0":"Running","check1":"NotStarted"}
{"progress":29,"details":"Upgrading Application to 8.0.0.8","check0":"Running","check1":"NotStarted"}
{"progress":29,"details":"Upgrading Application to 8.0.0.9","check0":"Running","check1":"NotStarted"}
{"progress":29,"details":"Upgrading Application to 8.0.0.10","check0":"Running","check1":"NotStarted"}
{"progress":29,"details":"Upgrading Application to 8.0.0.11","check0":"Running","check1":"NotStarted"}
{"progress":29,"details":"Upgrading Application to 8.0.0.12","check0":"Running","check1":"NotStarted"}
{"progress":29,"details":"Upgrading Application to 8.0.0.13","check0":"Running","check1":"NotStarted"}
{"progress":29,"details":"Upgrading Application to 8.0.0.14","check0":"Running","check1":"NotStarted"}
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{"progress":29,"details":"Upgrading Application to 8.0.0.16","check0":"Running","check1":"NotStarted"}
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{"progress":29,"details":"Upgrading Application to 8.0.0.20","check0":"Running","check1":"NotStarted"}
{"progress":29,"details":"Upgrading Application to 8.0.0.21","check0":"Running","check1":"NotStarted"}
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{"progress":29,"details":"Upgrading Application to 8.0.0.23","check0":"Running","check1":"NotStarted"}
{"progress":29,"details":"Upgrading Application to 8.0.0.24","check0":"Running","check1":"NotStarted"}
{"progress":29,"details":"Upgrading Application to 8.0.0.25","check0":"Running","check1":"NotStarted"}
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{"progress":29,"details":"Upgrading Application to 8.0.0.31","check0":"Running","check1":"NotStarted"}
{"progress":33,"details":"Updating Config for 7.4.1","check0":"Running","check1":"NotStarted"}
{"progress":33,"details":"Updating Config for 7.4.2","check0":"Running","check1":"NotStarted"}
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{"progress":33,"details":"Updating Config for 8.0.0.3","check0":"Running","check1":"NotStarted"}
{"progress":33,"details":"Updating Config for 8.0.0.4","check0":"Running","check1":"NotStarted"}
{"progress":33,"details":"Updating Config for 8.0.0.5","check0":"Running","check1":"NotStarted"}
{"progress":33,"details":"Updating Config for 8.0.0.6","check0":"Running","check1":"NotStarted"}
{"progress":33,"details":"Updating Config for 8.0.0.7","check0":"Running","check1":"NotStarted"}
{"progress":33,"details":"Updating Config for 8.0.0.8","check0":"Running","check1":"NotStarted"}
{"progress":33,"details":"Updating Config for 8.0.0.9","check0":"Running","check1":"NotStarted"}
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{"progress":33,"details":"Updating Config for 8.0.0.11","check0":"Running","check1":"NotStarted"}
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{"progress":33,"details":"Updating Config for 8.0.0.13","check0":"Running","check1":"NotStarted"}
{"progress":33,"details":"Updating Config for 8.0.0.14","check0":"Running","check1":"NotStarted"}
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{"progress":33,"details":"Updating Config for 8.0.0.20","check0":"Running","check1":"NotStarted"}
{"progress":33,"details":"Updating Config for 8.0.0.21","check0":"Running","check1":"NotStarted"}
{"progress":33,"details":"Updating Config for 8.0.0.22","check0":"Running","check1":"NotStarted"}
{"progress":33,"details":"Updating Config for 8.0.0.23","check0":"Running","check1":"NotStarted"}
{"progress":33,"details":"Updating Config for 8.0.0.24","check0":"Running","check1":"NotStarted"}
{"progress":33,"details":"Updating Config for 8.0.0.25","check0":"Running","check1":"NotStarted"}
{"progress":33,"details":"Updating Config for 8.0.0.26","check0":"Running","check1":"NotStarted"}
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{"progress":33,"details":"Updating Config for 8.0.0.29","check0":"Running","check1":"NotStarted"}
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{"progress":33,"details":"Updating Config for 8.0.0.31","check0":"Running","check1":"NotStarted"}
{"progress":37,"details":"Deleting Older Files for 7.4.1","check0":"Running","check1":"NotStarted"}
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{"progress":37,"details":"ERROR occured - Error: The system cannot find the file specified.\r\n","check0":"Retry Errors 1","check1":"NotStarted"}