To begin with, I would aim to identify the underlying cause of the issue. Have there been any modifications to the interface, the system, the marketing strategy, or any other factors that could have had an impact? I would work together with the teams responsible for these aspects, such as the technical team, customer service, or sales and marketing, to collect relevant information. After identifying the main reasons for the decline, I would recommend the necessary action steps. For example, if a technical problem is leading to slower upload speeds or completely hindering the process, I would collaborate closely with the technical team to resolve it. If the issue stems from a change in the user interface that has confused or deterred users, we would need to reevaluate our design. If competitive pressures are to blame, we might have to make strategic choices regarding our pricing or feature offerings. After implementing the actions, I believe it is essential to monitor the situation closely and make adjustments as necessary, ensuring that the issue is effectively addressed and does not happen again in the future.