In modern data centers, Elastic Optical Networks (EONs) are vital to transmit the data on high-speed links. However, they face several challenges such as fault toler-ance, latency, and resource efficiency in dynamic environments. In this context, we present Fault-Tolerant Multipath Routing (FMPR), a new multipath routing algo-rithm built upon predictive failure recovery, adaptive multipath routing, and redun-dancy in the system. FMPR predicts potential path failures and proactively redirects traffic, improving fault tolerance and reducing impact. Simulations on widely-used EON networks including COST239, NSFNET, and USNET show that FMPR outper-forms all existing approaches in terms of data transfer efficiency, fault recovery and latency reduction. It helps in better resource utilization and adapts itself to the changing network conditions It offers a scalable and efficient solution for large-scale optical networks. Future works will aim at generalizing FMPR to different networks, integrating energy constrained routing approaches, and verifying its performance on field events to assess its scalability and robustness.