UnhandledPromiseRejectionWarning: Unhandled promise rejection (rejection id: 65): Error: rollback has been called on this transaction(353fe860-36c4-463e-9c67-891fed9c2082), you can no longer use it. (The rejected query is attached as the 'sql' property of this error)

[isabelrios]

This warning and similar ones can be seen in the server logs:
(node:2253) UnhandledPromiseRejectionWarning: Unhandled promise rejection (rejection id: 51): Error: rollback has been called on this transaction(1ee7edc1-ec28-4bdc-94c0-f98b02f4f808), you can no longer use it. (The rejected query is attached as the 'sql' property of this error)

(node:2253) UnhandledPromiseRejectionWarning: Unhandled promise rejection (rejection id: 52): Error: rollback has been called on this transaction(f7578cb1-3fa9-4c8d-8ecc-c022b5470251), you can no longer use it. (The rejected query is attached as the 'sql' property of this error)

(node:2253) UnhandledPromiseRejectionWarning: Unhandled promise rejection (rejection id: 53): Error: rollback has been called on this transaction(f748bbf6-fc17-4c74-99b2-0d2aa581b0f2), you can no longer use it. (The rejected query is attached as the 'sql' property of this error)

(node:2253) UnhandledPromiseRejectionWarning: Unhandled promise rejection (rejection id: 54): Error: rollback has been called on this transaction(f748bbf6-fc17-4c74-99b2-0d2aa581b0f2), you can no longer use it. (The rejected query is attached as the 'sql' property of this error)

(node:2253) UnhandledPromiseRejectionWarning: Unhandled promise rejection (rejection id: 63): Error: rollback has been called on this transaction(3b9612ef-2356-46c5-b4f3-f71aecc402ea), you can no longer use it. (The rejected query is attached as the 'sql' property of this error)

(node:2253) UnhandledPromiseRejectionWarning: Unhandled promise rejection (rejection id: 64): Error: rollback has been called on this transaction(3d33275e-5385-444f-9be1-841466b59f8e), you can no longer use it. (The rejected query is attached as the 'sql' property of this error)

(node:2253) UnhandledPromiseRejectionWarning: Unhandled promise rejection (rejection id: 65): Error: rollback has been called on this transaction(3d33275e-5385-444f-9be1-841466b59f8e), you can no longer use it. (The rejected query is attached as the 'sql' property of this error)

(node:2253) UnhandledPromiseRejectionWarning: Unhandled promise rejection (rejection id: 226): TypeError: Cannot read property 'associations' of undefined

(node:2253) UnhandledPromiseRejectionWarning: Unhandled promise rejection (rejection id: 227): TypeError: Cannot read property 'associations' of undefined